Stretching?
 

I have read a couple studies on the benefits of not static stretching before exercise. One of these studies was done on athletes who would stretch before running, jumping, and lifting. It found that they lost power if doing static stretching before those activities.

I do not stretcht before working out but regularly warm up before lifting. This includes doing the lifting motions several times with out weight and light weight.

What is your warm up routine?

I have tight calves which causes my heels to raise in squats against my will. I hate it!

I stretch my calves for about 5 mins before each workout now (I only recently found out it was my calves and not my form, I thought it was in my head), then do a quick stretch of my shoulders forwards and backwards, hamstrings, side bends, etc then I hit the weights. I combine it with either a few mins of cross-trainer, or just stretch a little longer and go straight to lifting.

I have a very simple warm up
What ever exercise I'm starting with I will take a light weight for 12 reps then add a few kg and do 2 reps then add another couple of kg and do 2 more reps - thats it
That way I don't use much energy before the working sets
I never stretch

Ive never heard of that?!?! glad to hear you have a fix though i imagine balancing in the squat rack could be interesting on your toes with a lot of weight on your back.

Yeah it sucks SG! its not like I roll on to my tip-toes, just as I go lower, my weight transfers forwards to the front of my foot gradually and eventually my heel will come off the floor slightly. Its bizarre and only happens once I put some real weight in to my squat. All the same, the biomechanics guy I've had check out my squat said its something I'll have to overcome, but certainly thinks it is doable.

I am not stretching before workout but after. I just feel better this way. But warm up is important and a few sets with light weight are always done.

Warming up is essential to increase blood supply to the muscles before exercise

this way you avoid cramps and pain you feel when you suddenly load your muscles

stretching is more important in other types of sports involving running or jumping or fast movements so the muscles don't get injured if overstretched in a bad move.