This question is probably a bit old tech for most on the forum.
My hardtail MTB has two sections of exposed shift cable under the seatstay and under the top-tube.
I assume you can run a fully shielded all the way from the RD to the shfiter as many bikes especially with internal cables would do just that.
Can you switch a bike to run a full shielded setup and are there any major pros and cons?
I’m guessing it would just be a case of drilling the guides on the frame to allow the outer to pass through all the way.