so my 60' have gone away, how many passed do you get out of the hoosier slicks, i can still see the wear dots but i think the sidewalls are shot? i dont think that i have more than 50 passes on them but they are 2 years old

Burnout
http://www.youtube.com/watch?v=Vp8sQzFC7z8

Pass (terrible lighting)
http://www.youtube.com/watch?v=1k0V57gCkdw

I haven't been to a Wednesday night yet this year, so I can't comment on the track prep.

Probably due for a set though, especially if the car sat on them for a winter or two.

i get 38 to 40 and then the 60 foots get worse and worse, its not the track, its the hoosiers, soft compound.
both my 63 max wedge and 65 plymouth hemi just eat up hoosiers, i went back to M/T slicks and can go 100+ passes, same burnout.

I dont think the wear holes matter much. My last set still had deep holes left but once I took them off the car I could see the cords showing. Depends on how fast your car is and how much you race but if they are over 2 years old they are due for replacing either way.

If the sixty foot is just slightly slower than before that is one thing, but if they are spinning, or sometimes spin sometimes hook; then the sidewalls may be worn out.

I was getting "low" slick life a fews years ago (90-110 passes), then I changed the chassis setup to hit the tire less, put wider rims on, added inner tubes, and this allowed me to increase air pressure 1-1.5 psi. Now I get 200 passes on my Phoenix slicks (31.25 x 12.2 W). So sometimes a setup change is the real answer.

What size tire are you running? A small tire on a heavy car with good power will be hard on slick life.

IMO, if you keep the slicks out of the sun between races and over the winter, and you don't let them sit on concrete, 2 years should not be a problem. After that the compound is getting older. During winter, the best method is to get the tires off the ground (no weight on them) and keep them out of the sun/weather. Concrete is bad for the compound.

I bought one set of Hoosier slicks and got 42 passes out of them before the 60' times started moving all over the map. I talked with a Hoosier rep at a national event and the first thing he asked me was how much did my car weight and what were the ET's. When I told him that info he said I killed the sidewalls with the weight and power I was making. He told me that if I was going to run the Hoosiers I needed to have a stiff side wall tire.
I ran a set of goodyears and they hooked until the thread was showing. Now I am trying a set of MT slicks and so far I have been happy with them, but I only have a few passes on them now.