John, since Jim doesn't check the message board every day I'll give you my two cents while we're waiting on him.
First, don't go to Facebook ever for an answer to this kind of question, lol.
You would be fine on either the Q4 or the slicks. It really just depends on what you want out of the tires. Slicks will give the most grip, and they will last a long time, especially if you flip them to even out tire wear. You need to be slightly more careful on cool mornings to work the tires for a couple of laps before putting the hammer down. Don't believe anyone who says that unless you are a fast guy you won't be able to keep heat in the tires. That's just nonsense from ignorant people.
I usually mount one set of tires on Lesley's bike each year. She uses them to ride six or seven tracks days and then I'll use them for a couple of days (or more) after that. I don't have any experience with the Q4's but I would assume they will last at least as long, and probably longer than that. Jim will have to give you the exact prices but I believe the slicks will be $40-50 more than the Q4's. Exactly how long slicks will last will depend partly on the compound you select, and also on how hard you use them. I mount medium compound on Lesley's bike front and rear, and she runs a mid-pack Intermediate group pace as a reference.
If you have warmers you should use them, even if you purchase the Q4's. With the Q4 you might use the lower setting if they have more than one temperature setting, or if single temp just don't let them bake continuously for long periods of time. Say maybe 20 minutes on, ten minutes off kind of cycles.
If you use the bike to ride on the street then Q4's might be a better choice since you wouldn't have to switch tires to be legal. I've heard good things about the Q4, and it's supposed to be a great tire. Whichever one you select you won't be making a mistake.
You might give him a call at the shop to see what time he'll be at the track Friday. 336-993-6661