I'm having a time trying to get the tune on my S5 just right. I know it's hard to help tune over the net, but any help is appreciated. I can normally tune most any engine great, I just can't get a handle on this one.

Top end seems great, and I can get it to idle good. But when I'm running on the track, the bottom end just seems like it's not there. It's not very peppy. I can get a video of it if it will help

Can a bad bearing cause this? Even if it runs great everywhere else? I'm not having problems with temps, it's just that low speed problem.

To anyone running the S5, where are you needles at now from fully closed?