limited extension

I broke my arm in three pieces a few years back, needless to say the had to opperate and i was stuck with a couple of plates and a lot of screws. I can't fully extend my arm, but i can extend it 150 degress only missing 30 degress. I considered myself farly lucky.
 
I shortly after that started reaserching body building, well after much searching and trial by errors i am here today still exercising.
 
What i want to know is if anybody who knows a little about kinesiology or what have you could tell me when i do an exercise like the french press, since i cant fully extend my right arm, if that will decres the over all value of that exercise. same things follow the bench press and a whole assortments of exercises.

I dont know much about kinesiology silascn but heres my line of thinking..
 
If you cant fully extend your arm, it will limit your range of motion. Now that might be a bad thing for say tricep exercises where to get a full contraction, you need max extension of your arm.

However, with things such as military press, bench press etc, it shouldnt affect you too much. Its advised that in these exercises you DONT lock your arms. now, if i had to measure the angle of my arm at the top of my bench press or even military press itd have to be around 160-ish degrees. So if you can get 150 degrees outa your arm, it shouldnt affect your range of motion too much. You should be able to do most exercises without too much trouble or comprimising results.
 
Saying this, you have to be careful because if you have full extension in your other arm then your pressing and pushing exercises might be uneven because you can bend one arm more than the other. As you get bigger, this can affect your symmetry.
 
Like i said, im no expert in kinesiology or biomechanics but i hope it made sense.