Luke,

Why not PCM on this model??

The last case of glitching on an intelligent pulse type RX I came across turned out to be a flaky pot on the TX, as it was always the same channel affected..
The TX was a 9c, so not a cheapy either....
IPD Rxs tend to only move on receipt of a valid signal....

Try a thorough range test on the deck to see if you can recreate it!!

Regards,

Steve