I bought the pink sig mosquito for my oldlady for christmas and it had some problems when we first took to the range. But now we rarely ever have problems with it. And when we take it to the range we shoot 400+ rounds at a time. But one thing ive noticed about this handgun is it loves its oil. It functions better when i put a few more drops of oil on the feed ramp and on the contact points of the slide. Hope this helps.
Thanks. I'll try that on my next trip to the range. I only put less than 200 rounds so far.