Both hard starting and the dreaded "high idle hang" can be directly attributable to lean low speed settings - just as you've witnessed. It will not flood itself out if you richen a little at a time until the hang issues diminish to the point you can handle them or disappear completely - then reset your idle speed so it's reliable. Set this way you'll find it won't stall on short final or right after touch down near as often?

The engines do not run like a Cadillac V-8 when they're right. It should be slightly uneven on idle. It's a 2 stroke single. That's the way they all run!