The problem is most people A) run cheap RTR engines that are not as easily tuned properly coupled with B) not having a proper tuning guide to work from to tune their engine properly. There’s so much false information in regard to tuning nitro engines that it’s no wonder people have trouble. Once you understand the process properly, it’s actuwlly quite easy to tune an engine. Using better quality engines makes a monstrous difference in tuning as well. Quality engines are easier to tune and hold their tune for a long time. Most often each time you run, it only requires a small tweak of the needle to run properly.

Its really a matter of perception. If you perceive it to be difficult and get that set in your mind, you will undoubedly have problems. Also, if you read the break-in and tuning guides on places like the Traxxas forums, you will encounter failure of some kind.