Ahhh, this subject once more, im bored so I'll have to give my 2 cents

I will have to say that some of my models like my submarines, my tank etc, I absolutley cannot use PPM. Too much electrical noise from stuff to ever be able to solve for a PPM Receiver. The LINK with PCM is much more secure.

Like what was said, PCM can and will HIDE a potential problem, and it will rear it's head at the most unfortunate time.

Setup with and range check with a PPM, drive the damn thing around on the ground for an hour, make sure you are getting no BS with your signal or jitters.

Use logic when installing electrical components. install toroids on long leads etc.

Buy a frequency scanner! the $200 is a piss in the ocean compared to the consequences of flying on a channel with some type of interference from somewhere.

PCM is waaaay ahead of std PPM in link quality.