"Not impressed with the MoCo's S3 map or their tuner" Did you get the Auto-tune with the Pro Street Tuner? My dealer is trying to sell me on both. I was considering getting the S3, what numbers did you end up with?
I did not get the Auto-tuner. As soon as the cables arrive (next few days) I'm going to do Smart Tune, adjust the Warm-up fuel enrichment, and change the throttle blade control at low rpm. Warm up setting is giving too much fuel for too long, and bike over-responds to small throttle changes at low rpms.
I haven't had dyno pulls done on the bike; I wanted to do the break-in myself, and the local dyno guy isn't great. Also, the PS Tuner can't make a lot of changes...so kinda stuck with what HD has for the S3.
Overall, the bike runs pretty good, but the change from stock to S3 is
not impressive, definitely not worth the money...but the M8 sumping problem convinced me to keep the warranty, so had to give up the good aftermarket approach.