In looking at a few Evo engines, they all appear to have a limiting device on the high and low speed needles. My thoughts are that these features are aimed at the new guy. I suspect they're supposed to be a foolproof way to keep the user from twisting the needles too far from where they're supposed to be for optimized settings.

I haven't tried yet but would like to know if there is any benefit to removal of these features aside from the obvious things like weight and not having stuff in the way to snag things.

Regarding the remote needle assembly:

Seems like OS Max led the way here and I suspect the remote needle came about from liability concerns as most recent designs have the needle back on the carb albeit with the ugly angle. I've always felt that if you're going to put your fingers in the prop arc, its not going to happen when you're tuning the high speed needle, regardless of how close it is to the prop.

Looks like it can be done without additional parts but wondering if the HS needle can be moved to the carb easily enough on Evolution engines.

Welcoming any replies - thanks.