Matt, I'm making progress on my DLE as well. I went back to a 30 degree timing setting and ran the counterbalance spinner I modded up. I'm running one of the Chinese CF spinners with a CF backplate. Never gave it much thought but when I put the backplate on a balancer it was out a tad. I ended up drilling 3 1/2" holes in the light side and then mounted it up with the heavy side opposite the piston and con rod. It made a huge difference. Keep in mind this is mounted on a really light airframe. It's a 33% Laser, the engine is stock and Im running a K&S header MTW canister. AUW is 16 lb even so the vibes really show up especially in the cowl that is only 2 layers of 3.7 oz cloth. I'm running a Falcon CF 23x9 prop that is actually pretty darned light. By my standards it,s a very quiet setup. The engine is now really starting to behave, throttle response is better then it ever has been. I can climb forever at half throttle. I've settled with Stihl HP ultra mixed up with Shell 89 octane at 40-1. IMO once you get the engine to run smoother it just does everything better.