Even though I hate the little evil things My husband swears by them - they can be a usefull tool for him - just as long as he has learned that don't get too upset when (not if) they don't turn. So by all means, keep using them as long as they don't frustrate you!

As with many things, I am sure there will be a pro-ketostix user along soon that will give the opnion of that side of the coin!