Welcome man, like a lot of people said there's a ton I've learned from the folks here AND another benefit is I get a TON of motivation to go and grow the stacks after reading posts/seeing pics on here.
Welcome aboard. Great place to be with a cool bunch of people. Also nice because if the family is looking over your shoulder you don't have to worry about what might appear next. @Pallet Pete have you done an echo weed eater and how much did it help if so.
Yes I did my gt225 and it woke it right up! There's a little black cap over the high jet on the carb directly below the primer bull on mine. All I had to do was remove it with a hot screwdriver and turn it up. The muffler didn't even need to be touched. They set trimmers so lean they actually can burn up from normal use. If you do the high jet that trimmer will run like it should no muff mod needed.