See, it's people like you that will give Banshees a bad rap. Don't know or care to learn about Banshees or two strokes in general.
Given advice, doesn't follow it.
You need to search and read up on leak-down tests, plug chop, just generally look at threads in the jetting section. You will learn tons about the subject. When a new thread comes up about jetting, follow it. Learn the process, see how the thread evolves.
In the jetting forum, read the sticky thread "What jets are you running" You may find a set-up simular to yours. Just know that no two machines are identical and may need slightly different jetting. Only you can determine what is right for your setup.
Also google search spark plugs, piston wash, and melted pistons.
BTW, a 2s always runs great just before they blow up. Lean is mean, but not for long.