Yeah fair enough. That was kind of my experience until I moved up groups. Faster group I occasionally hit a frustrating guy, but if I do a pit ride through I'm good. Slower groups I'd end up going through pits to avoid one frustrating group, only to hit another.Just because it can be frustrating to get passed on the straights all the time and then have to do all that work again. Plus being a track day, I don't push it 100% and I'm a lot less aggressive with passes. So if there's someone on a 600 or 1000 in front of me that's maybe like 1-2 seconds slower than me, it can be frustrating. With a bigger bike you don't have to worry about that so it's just easier. But in racing, when everyone is on similar bikes, I've had some really fun and close racing on the little bikes.
I'm actually planning on moving down groups with the bigger bike, mostly because I haven't taken it to this track and I'd imagine my braking markers etc. for the 400 will be a little off when I'm going 80km/h faster on the straights. Figure I'll give it a session or two and move up if I'm not way down on the pace. Bigger bike will make the slower group less of a pain in the ass anyway, presumably anyone slow in the corners will also be slow to get on the gas off the corner.