I was out riding this last weekend and it seemed to me that the transmission just seemed to engage a little more harsh going into fourth from third and from fifth to fourth. All other shift points seem the same. There doesn't seem to be any difference in the way the bike acts but just a different feel shifting to fourth. No driveablility issues at all. Spectro 6 speed in the transmission and HD F+ in the primary. Both changed about 2200 miles ago. I opened up the primary and the oil stills looks good under the light (nothing shiny) and from what I could see through the transmission fill hole, the same can be said for the tranny oil. Any thoughts? The bike has about 7,000 miles now.