I replaced the firing pin on my (from the classifieds) Reo Grand LP after I got fed up with inconsistent firing issues. I found the pin was a bit warped from a heavy hand, and a massive glob of some unknown soldering material. Now the seller had stated it had been "upgraded to sub-ohm contacts by a third party." Is this the normal route? Do I need to be wary of sub-ohming on the new firing pin I ordered from Rob in the last month? It is firing well and consistent and on an almost feather light trigger now. Thanks for all the help. Cheers!