Yep, my comment of why the stumble had it wrong.
Regarding servo slow down being a band aid.... that is true, but we use all sorts of counter efforts to solve problems. Down thrust is a band aid for using a Clark Y foil, etc. An accelerator pump is a counter effort to a sudden drop in vacuum and inadequate fuel to air ratio. Servo slow down allows leaning and smoothing an idle and avoiding the stumble that sometimes comes with it..
On the Saito 1.25 conversion, if it was leaned up enough to close the barrel to obtain a low and smooth idle... it wouldn't just stumble... it would die. However, using a servo delay completely solved that. In twenty eight flights, there has been no dead sticks nor has there been any sense of slowness to power up. The counter measure or band aid has no ill effects that I can tell.