I've got two G43's that I carry, (yeah - it's that dual state thing). They're set-up identically including Pearce Plus+1 mags and I load them with Winchester Ranger 147 GR bonded ammo. I ran 150 rounds through each gun, (50 rounds through each mag), to make sure that it worked reliably.
I disagree with Sabougolden, don't polish your ramp.
It's one of three things - either your choice of ammo, your choice of mags, or the combination.
Take the mags apart and clean them first. Mark them so that you can see if one or the other is giving you issues or if it's both (all) of them. Once the mags are clean run standard profile ammo through them, at least a box to see if you have any issues. If ball ammo won't run in these mags in your gun I'd contact the manufacturer and see what they have to say. But in the meantime, I'd go back to the factory 6 round mag or find another solution.
If you don't have any issues, then try your ammo again, and when you do, still pay attention to which mag is running correctly or not. If one mag works and the other doesn't, then it's just the specific mag. You might want to either talk to the manufacturer or use something else. I'm pretty conservative for my carry gun, I'd use something else. If my range toy malfunctions it's no big deal, if my carry gun malfunctions it could mean my life.
If they all fail after working with ball ammo - it means that ammo/mag combination won't run in your gun. In which case, try a standard mag and that ammo in your gun. You do still have the factory mag, right? If standard mag and that ammo run, then you need to either get new mags or new ammo.
If you go to new ammo, I'd run at least a box through your gun to make sure it cycles correctly. I know defensive ammo's expensive, but the thought of my carry gun malfunctioning when I most need it because I was trying to save money...
