In terms of bicycle mechanics yes it would be highly advisable to NOT under any circumstances use loctite to keep your pedal from spinning, I cannot repeat that enough. What you need to do is get used to flipping the pedal up then clicking in, once you do it won't be hard at all as you'll know exactly how to do it quickly. If you can't however adapt to this or don't like a pedal with only one engagement point then check out pedals like Speedplays or Crank Brothers' Eggbeaters which offer more engagement points.