I was thinking to send it off to them for install. I think I would be ok until they get to the hammer assembly. Let me know how it goes once completed. Right now the kits are on back order.
I have LC9 which came with two mags. One shorter than the other. I have not experienced the issues you describe. I will say the extended mag does not fit quite as tight as the pinky mag. I have put several hundred rounds through the firearm.
FWIW, I made electronic application for lifetime mid Dec 2013; got printed the latter part of Dec. I received my permit the first week of February. I was surprised; they told me to expect 6 months. :yesway:
I can only reply with regards to the LC9 and the difference to a .380. I just purchase an LC9 and have a couple hundred rounds through it. Being a compact carry and in 9mm, it took awhile to get used to being a little snappy. Through practice I have found it very manageable. I have been around...