Currently doing Sustained Power Mid-Volume. My A event is in October and will be somewhere in the 16-20 hour range. I am extending the Thursday workout with an extra 15 minutes of riding at 65-70%. I am adding an endurance(Pettit, Bald Knob, Beech, etc.) ride to Fridays. Lastly, I am extending my Saturday workout with additional time at 65-70% to stretch the workout to 2hrs.
I am curious, is this beneficial or is it diluting the signaling I am sending my body and costing me gains? Would I be better off to split the intervals from the endurance work by doing a morning endurance ride, then intervals in the afternoon?