Hi Jim
Stick to the 5 mags routine. No drop off and less chance of a jam. Review the gun when you get it. I've posted mine so you don't need to read it again.
Jams are infrequent but they are a real pig to clear. Only jam I have had has been from a duff pellet which was too loose so now I stick to Dynamic Tripple P 1and they are fine. I have the 8" barrel and find it's great for strengthening the wrist (NO comments please) but makes the gun more accurate than I am.
Enjoy
Target Bunny