Originally Posted by RokleM

I guess let's set both our and your expectations:

First, are you racing or no? If you're just playing as you describe, yes you could get the hardest compound possible and have them last quite a while, as long as you're ok with moderate or less than perfect surface grip / performance.

Secondly, you're aware that 15-20 trips on one set of tires is an incredibly long time in racing right? So if you're getting that, you're doing very well.