From what I've seen some of you do not know what a jm press is or how to perform it. It's done by doing the following...
1. It's basically like a close grip bench, so first thing is first, your grip is that of a close grip bench press.
2. You bring it the barbell down anywhere above the upper pecs
( NO LOWER!!) and below the lower portion of your neck ( NO HIGHER!!)
3. However, you don't bring your elbows down to your sides, such as creating a 90 degree angle with your elbow forearm and upper arm. Instead your forearms fold down on your biceps, thus taking out the the shoulders and the majority, if not all, of the chest. This focuses the weight directly on your triceps
4. Don't bring the weight complete down to your body, or otherwise it can lead to serious injury if you get it stuck. Instead, lower it until it's between 4-6 inches off your upper chest/lower neck, then press.
I hope that can clear some problems up. It's just like a close grip bench, except you bring your forearms straight down onto your biceps, instead of out to the side. If I'm still not getting this through, I'll try to explain it better. Oh, and I highly recommend you use a spotter on this, even if you don't use a great deal of weight.
Thread: JM Presses