Hi gang. I started a landscaping company last year and have two girls and myself running things. When younger I worked at a ski hill, instructing in the winter and helped cutting new runs and general maintenance in the off seasons. I received a chainsaw course back then and have always enjoyed using a saw. Anytime friends are cutting firewood or dropping a tree I am the first one there. Anyway, my question(s) are: I own two newer saws and have been doing all my own maintenance on them. After speaking to a few friends and reading threads here on the site, I would like to remove the limiter caps from both my 461 Stihl and my 490 Echo. The one thing that confuses me is due to conflicting reports about people who have removed the limiter caps. Some people say to pop them out, trim off the tabs and replace them. Others say to simply remove them. The people saying to replace them argue that it prevents the adjustment screws from backing out. I don’t see why the limiter caps would prevent the screws from turning. Mechanically there doesn’t seem to be anything that would stop the adjustment screws from turning if the limiter caps are removed. Am I missing something? I watched a bunch of videos and have replaced the 461 muffler cover with a dual port cover and have conservatively opened up the muffler exit port on the 490. I am just waiting for a tach to arrive via Amazon before retuning the saws. Thank you.