So I was trying to work out how long my tires would last before I need new ones.
They have 8/32" of tread to start, which is about 6.35mm. In measuring my rear tires after the first event, I found them to be at a little bit over 6mm... so not much.
The front tires on the other hand, were already down to around 3.50mm
I worked out that the total number of runs between all drivers, which was 28 for the weekend. Which means that they probably only have about ~60 runs in them on the front. So if I rotate them back to front each event, and account for a little bit of wear on the rears each time, I figure that I will probably get around ~100 out of the set before they need to be replaced. So for single driver it should be good enough for 6 to 7 events.
I am thinking I can probably pick up 2 more tires mid season, and that way I will have enough to complete the year.
I guess some other factors to consider is that me and Murray found they were getting excessively hot, so keeping them cool might prolong the life. They kind of felt like they were smearing off onto the track near the end of the sets with how hot they were getting. Also I've heard Fort McLeod is more abrasive than other venues, so I might have less wear at Westerner.