I bought 2 sets of these spacers, a 30mm set and a 20mm set to move my dovetails further away from the OTA after attempting to fit an EAF using the standard that came with my scope. An added bonus, was by adding the 30mm spacers under the OTA, I was able to comfortably add my MiniPC under the scope, centralising all the cable routing etc!
I coupled 2 sets of these spacers with 2x Prima Luce Labs losmandy dovetails, and a set of rings for my Askar 65PHQ. This provided me with an exceptionally rigid mounting solution, that has enough clearance for my minipc and the EAF motor, as well as providing a top dovetail to hold my powerbox.