Solved by itself 
I wish my code was smart enough to debug itself.
i tried powermatch at the beginning of this year and i gave up, to much probs with drop outs and so on, it was impossible that my Vector 3 control the NEO2 with the old Powermatch.
With the new Powermatch it is fantastic, no power difference between the workout recorded with TR and at the same time on my Edge 830.
In the time between i had to handle 2 different FTP settings in TR and on Garmin side because of the big difference of NEO2 and Vector 3 (10-15 Watt) and now they are really equal and totally stable to ride with a good feeling!
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Ditto. EPM has been a life saver 
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Keen to try this, and even more hopeful that it will fix myproblems. I’ve had to ditch using my dual sided 4iiii with a tacx flux due to the variation and lag in matching prescribed power.
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I had a similar encounter on Thursday trying to do Threshold efforts…
Interval 2 was so bad with the overshoot/undershoot that I just flipped to KICKR power only before just being annoyed and going outside.
The yo-yo’s just get so frustrating.
Glad to hear you guys are making progress. Are you noticing some trainers are more prone than others?
@alhan any chance I could get added to the test group, even if the official update is imminent? I would really like to avoid having to use a dual sided PM as a cadence sensor!
Looks like there’s a new app update right now, and it has “new” PowerMatch in the release notes, so assume it’s now available for all.
Extraordinary work @alhan and team - this is seriously a killer feature.
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Whoop. I’m skipping rest day just to try this
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I’ve struggled with PowerMatch for years with large changes in wattage. Going from low wattage to Vo2Max for example will see me overshoot the interval for 30 secs and then when it’s over go way under for about a minute. I’m running a Kickr18 with Stages Gen II.
I was so excited to see ePM get released today and crossed my fingers that this would correct things. Here’s my ride of Tunemah from last year:
and from just this evening:
You can see that the Kickr is responding to the prescribed wattage so much better. Huge thanks to the TR for working on improving this.
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If we’ve never had problems with Legacy, is there reason to experiment with the Newly-released version? And, will Legacy remain available (forever)? 
–kellen
I would try the new version, if it doesn’t work, let us know and we’ll look into it.
We will probably sunset the old version of PM. We have a lot of confidence that this new version is better.
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Nate,
As a former control system engineer, I’m curious what changed. Can you talk generally about what changed in the power match control algorithm?
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I will tell you in person. It took a lot of time to do this and I don’t want to give anything to competitors.
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The nerd side of me wants to know but realize the how helping competitors would be bad. Hoping that in this development maybe you came up with ways to make it even better if the protocol changed (extra data being sent from the trainer or control messages sent to the trainer)
Nate,
I totally get that. I was wondering in general terms something like “we switched from a PID style control algorithm to using a quaternion.”
From what Nate’s hinted at, I’m guessing they switched from a flux capacitor to an impulse drive and that made a huge difference.
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@alhan i have one last questions, what happens with workouts like " 20 Minute FTP Test" or " H.A. & A.C. Power Profile Test when the test intervals will automatically switch from ERG mode to SLOPE or LEVEL mode if you are on an electronic trainer. This means you might need tto shift or adjust the level when these intervals start. TrainerRoad will not hold the resistance to the target like the rest of the workout.
Could it be a prob for Power Match?
i only want to be prepared, when i ride them in the next future?
Power Match only ever applies when using ERG mode. At any point when in Resistance or Standard mode (manually selected or workout swapped), the trainer power data is ignored.
For RES or STD: You are in control of power value via the gearing on the bike, your input to the bike, and the ability to alter the RES or STD value in TrainerRoad. This is true when you choose the RES or STD mode in the Devices screen (or live workout screen on Win/Mac), as well as when the trainer mode switches automatically via testing like the 1x 20 minute test.
i mean more, during the switchoff of from ERG mode to Level mode my Vector 3 is the primary Powermeter and when switch back by the workout to ERG the powermatch continue working, sorry for my bad english?