Originally Posted by ortho281
Agreed, but OP is only tracking 3-4 days/year, and so may never need a full race pad. The ST street performance would do.
Disagree based on the assumption that you want to consistently do every session throughout the weekend. Occasional days are even more of a reason to change your pads.
1. Nothing worse that showing up to track with 30% of the pad life remaining only to find out by the 3rd session of the first day that you're out of pads. Then you need to change hot brakes at the track. Once the pads get thinner, they wear faster because they get hotter.
2. You have to pull the wheels and tires off to change the pads. What a great opportunity to look at your suspension, wheels and tires to make sure that everything is good to go before and after the track event. At a minumum, you should be pulling the wheel to look at the backside pad.
If you less fuss or cost is an issue then the ST pads might be the way to go.