Some guns are better than others at handling JHP's. Your best bet is just to buy a box and fire them. I know they are expensive, but if you are planning to carry the gun, you should at least take the time to go ahead an put a couple of boxes through to make sure everything is OK.
If you have a S&W PPK, most likely you won't have any trouble with JHP's (but you never know until you fire) and if you have an older Interarm's gun you might have some feed issues. Most of the time, this can corrected, but once again, you need to fire the gun with your ammo of choice to be certain of a problems.
If you do a seach, I believe you will find out more info on Fiocchi. I remember coming across several threads in regard to this ammo.
OH, and welcome to the club. Enjoy your new gun.