Hmm, the thread is drifting slightly off topic, but since it's still "CEM40 saddle" related, even though the OPs question appears resolved, lets run with it.
I'll drop an email to iOptron and see if I get any response on swapping "new design parts" for old. If I do get a response I will post it here.
My actual issue, and the reason I'm interested in an improved design, is that with my "original design" CEM40, I use a Vixen dovetail on my RC6.
The locking blocks, when cranked up tight (and I always use an allen key to tighten them) tilt on the machine screws holding them, so that the underneath (Losmandy) side is closer towards the saddle centreline than the upper (Vixen) side.
This has two bad effects - firstly, it means the vixen locking blocks are not contacting the vixen dovetail evenly across what should be mating surfaces, and secondly, it means that the screw threads bind on the holes through the blocks (since the blocks are tilted) and hence the blocks do not loosen when the machine screw are slackened off. Cue telescope stuck on mount saddle and much swearing when attempting to pack things away.
Having typed this I think I need some pictures to illustrate them email I'm going to send. Searches for macro lens....