Whilst I wouldn't argue that there isn't a difference since 2.51, I'll say this - I spent ages in Racebox before the patch trying to get the best SL / TT etc times that I could, hence nearly 400 records on the rankings site. Now I'm not the fastest player around, but I have put a fair amount of effort into my times.

Anyway, during Omnium, specifically the SL and TT rounds, I've got personal bests on most of the tracks I've attempted, most of them without too much fuss. I've also recently got a number of PBs online, including my first ever top 5 time. So I think unless you're in that top percentile of players (yeldar, Booney et al), there's still a lot of headroom, even with the altered handling.