I'm still struggling with my OHP at 75 pounds / 34kg. I can do 9, 8, 5 reps with a couple push press assists at the end. My shoulder stability just isn't good. But I keep cracking away at it. Does the suicide grip really help? I figure if you have grip strength issues it would, but I'm not clear on how it would contribute in other ways.
Also I encountered a major tip for biceps on the Athlean-X channel.
Basically, I have a really poor mind-muscle connection to my biceps. I have been working them almost since the beginning, two years now, and I still feel like I haven't made significant gains in size or strength. My forearms radically over compensate during my curling, to the point I was starting to get very noticeable pain/tightness in my left (dominant) elbow. After preacher curls my forearms and the elbow in general would feel lit the fuck up, and that would transition to elbow pain the rest of that day and extending in to other days.
I combated that with a Voodoo band and lacrosse ball, which caused the pain and tension to leave my elbow and center on my forearms, to where the problem actually exists.
It was starting to really hamper my workouts.
So the tip is: let your wrist fold as you come up in to the curl. Keeping a rigid, locked wrist throughout the whole movement invites your forearms to contribute. But if you let the wrist bend back (not sloppy spaghetti like of course), it helps take a large amount of contribution from your forearms out of it.
You can test this yourself. Do a normal bicep flex, but instead of keeping your wrist fixed and upright, let it fold back so the palm of your hand faces the ceiling. You will feel a much stronger and more immediate contraction in your biceps.
I did my normal curling weight with this method and lo: no elbow pain afterward, no super tight forearm flexors or muscles. In fact, the amount of DOMs I experienced in my biceps was so minimal the next day, I feel confident I can put more weight on now that I'm not worried about blowing out another joint or stressing out my tendons.
It will take a few weeks of this for my elbow and forearms to really heal up and start feeling really good again, but man am I glad I found this tip. It has made a big difference. I don't even care if I get better bicep contractions and growth out of it. I'm just happy I've found a way to relieve stress and tension on the elbow joint and forearm flexors.
The video in question if you want a visual example of it:
https://www.youtube.com/watch?v=nCJVOcBTJUA&t=299s