@RH990 - Thank you for letting me know.  I checked those out and bc I'm on a M frame and I got shorter legs it was a tad long for me.  I ended up going with the KS Rage-i 125mm dropper.  It has one of the shortest overall lengths.  I ended up drilling the black caps like you did (nice challenge drilling at an angle on the bike so the wires can sit as flat as possible.)  Almost finished with the install and can't wait to  try it out.