When doing a front squat should i
1. Have my arms with an overhand grip but relaxing the weight on my wrists?
2. Overhand grip should be slightly wider than my shoulder length?
3. When lowering should i go as far to the bottom where my buttocks is almost touching the floor - this way when i lift myself up my heels do the pushing and my Rectus Femoris Muscle (Click the link in the image to see which muscle im referring to :-) http://www.innerbody.com/image_musfov/musc65-new.html) and muscle surrounding it would feel the pressure to lift myself up?
As for a back squat, would i do the same as question 3 i.e. go right to the bottom and then lift myself up?
Thanks