Joe,
I noticed there are a lot of new types of tees available like the “brush” tee to reduce the friction of the ball leaving the tee. Does this really make that much difference?
Harvey

Hi Harvey,
I read somewhere that makes about as much difference as your car being slowed down from a bug hitting your windshield. However, here is an experiment you might want to try. Take one of those rubber cylindrical tees that are used on driving range mats, and cut it to your desired height. Then cut a notch about a quarter inch square at the top. Point this notch toward your target and tee the ball. The idea here is that when the ball is struck, there might be some side friction from the tee to the ball which might reduce sidespin and thus reduce slices or hooks. It might be worth a try.
Joe