Hi..My pool cleaner does a great job at cleaning the pool, but for those times when I need to vacuum, my cheezzze little vac head does not do a good job. I have to move it "very" slow or it won't pick up and if I increase the suction, it sticks to the bottom (I broke it the first day). I was thinking of getting one of the heads with the wheels (25-35$ range). Seems to me I could increase suction a bit and the wheels would keep it from sucking itself to the bottom. What do ya'll think? Anything I need to know about them before I buy one?