I've just received the new CH Throttle Quadrant. However, things are not going well with apparaent conflicts with flightsim yoke, and sparse instructions. Does anyone have similiar problems ?

What could be the problem? what OS are you running it on? Just not assign the axis of your old controller with that of the Quad and there should be no conflicts. I have a CH yoke, CH pedals, Force feedback stick and wheel all showing up in my selectable controllers within FS and never have had a conflict. Hope things work out for ya because I'm kinda looking forward to getting this controller.

Thanks. No I seem to have it working, but now I've got the controls completely reversed. So full throttle is idle, etc. I've re-calibrated a thousand times but can't get this straightened out. Any ideas ?

Yes in the assignments you can reverse each axis.

I also received mine today. After an hour of configuring and tweaking FSUIPC I now have it working the way I want. Take your time and read the instructions for FSUIPC.