IF you're planning to reload for a HK, and particularly if you're going to reload LEAD bullets for a HK, make sure it does not have polygonal rifling.
We have a P30L ( - for sale, BTW

- ) and it has polygonal rifling. HK does not recommend lead bullets for the P30L, and sure enough it does not shoot them well - shoots jacketed bullets just fine, a very nice pistol, but does not like lead. I worked it down to where it shot lead bullets (Lee 125gr TC - available in a 6-cavity mould

) very accurately, but by then there was so little powder in the case (2.7gr) that the action did not even pretend to cycle - it reset the hammer, but that was it. We shoot lead bullets almost exclusively 'cause it's cheap, I pay ~ 7c a round, almost all of which is the primer (and not taking into account all the time I spend making the bullets in the first place

), so we put the P30L on the board and will be seeking something with conventional rifling.
As well, I have large hands, and I find it difficult to get my finger into the trigger guard. I also loved those mag releases, but the result is that you have to thread your trigger finger in, and they poke into your finger and hinder your trigger squeeze, and there's a risk of hitting one of the mag releases and dumping your mag in the process. And as noted, the trigger on the DA/SA P30L is not the best, and there are NO ( - repeat, NO - ) aftermarket parts available for them. It'd be very sweet with a trigger job and adjustable rear sight, but nope - not happening.