Did you try .12's or .21's 10 years ago?
Both are still "finnicky"; but they're a LOT easier to tune that they were 10 years ago. Between the fuel and (in general) finer-pitched needle threads than the old days, the engines are a bit easier to tune and generally have a considerably broader tuning-window that they will run in.
If you want it to go out there and run itself and not need maintenance or not have to adjust the mixture screws slightly throughout the day, then no, nitro is not for you.
It's not hard if you read up and pay attention though
I'm sure you have a ton of guys at your local track that would help you as well
