Yeah, the spec hurts with the Shapeshifter. The Guide brakes and Reverb lever work seamlessly together, sharing a clamp, they have nice proximity to the grips, etc. If you run the shapeshifter in between the grip and the dropper, your thumb defaults to its lovely big paddle over the reverb button, if you mount it on the other side, you have to reach over the reverb to get at the shapeshifter,and if mounted too close, it hits the reverb.
I swapped my Thompson post with a mate for his Command Post IR, thinking I might buy a Triggy, get the dropper on the "under the grip" position. But for anyone reading, if you need a a good quality dropper post lever, hit up Canyon for a Shapeshifter lever spare, it's seriously well designed and would work admirably on a dropper! Even has neat routing.
Ill get a photo later of my setup.
Sent from my Agora 4G Pro