slicks

I have medium rear (140mm) and soft front Dunlop slicks. I ride in B group and use tire warmers. How many track days would these last on intermediate pace? Does it make sense to use them till the wear bars? I know slicks are overkill, but I use them anyway for better grip.

So looks like the two main suppliers for the small bikes came to finally making a slick. I know one guy who has had the chance to use the Dunlops at chuckwalla and liked them. Has anyone else had the chance to get either of these brands of slicks on and give them a go? I just sold my...