Just woundering did you lower your rear tire air pressure for the runs? Also with the spyder loosing traction so easy Have you considered adding weight over the rear tire? And just for the heck of it try shifting at 6,500 or 7,000 rpm.
I had a friend of mine years ago that I swear had a dyno built in his pants. I had a BSA at the time and a bunch of us used to drag race. This one guy used to beat me all the time.Then this friend of mine road his bike and then mine. He said that my bike was a lot faster. Then this friend of mine raced him ( the guy I could never beat) with my bike and beat the other guy really really bad. I said what did you do. He said I just shifted when the power started falling off. I said at what RPM are you shifting at. He said I don't know I never looked at the tack. Well run him again and let me know the RPM you shift at. I said I shift at 9,000 to 9,500 Rpm it's still pulling hard at that rpm. Well he came back and said Race him and this time shift at 6,500 rpm. So I did and guess what I beat the hell out of that guy I could never beat before. Huh I said it still pulls hard at 9,000 rpm But not as hard as it does at 6,500. And that looks like where your torque peaks by the dyno chart. Give it a try.