Thomas,

I will look for the low voltage part of the pulse to see if it rises. I'll also check the pulse when I load it with a regular servo to see what is happening there.

So my test (maybe later today) will be no load, single servo load and double servo load for 5645s, 5945s and 225s.

Resistance check from positive to signal wire:

5945 6 Megohm, polarity dependent ( 0 meg probes swapped).
5645 0 Megohm either probe polarity. Hey!

I'll post when I get the pulse scope data.