Merkaba

Been looking for my next foamie and I decided to get into Variable pitch stuff. Thinking maybe the turmoil with the rimfire system. Are there any systems that are just a pain. I'm relatively new and dont like too much mechanical "foreplay" before I fly. I know this has been asked ad nauseum but I would prefer a little direct attention becaus I know there have been systems that dont seem to work well. I will be reading around as well so its not like I'm just being lazy.

So shoot me a quick line and help a fellow Rc'er out! Thanks!