End of season training

It’s hard to know what to do here at the end of the season. Last year I had my best races of the year at the Downtown Greenville Cycling Classic, but that was after 4 weeks without racing – just training. It doesn’t help that at the beginning of this season, I bumped up the start of my zone 5 heartrate by 4 beats. So the graphs below showing my weekly training summary (time in hours) from last year and this year aren’t exactly comparing apples to apples:

Any thoughts on how to maintain form for criterium racing all the way until October? One potential problem that I run into is that this is absolutely my most favorite time of year to ride, and yet I have a feeling that to maintain good form I should cut down my hours on the bike and increase the intensity!