I have a Springfield Loaded with the grittiest, heaviest trigger I have felt this side of a revolver. I bought it pre-owned and don't know if it a victim of amateur gunsmithing. First things first, I need to get rid of the ILS. If I buy a mainspring housing from Smith&Alexander or Brownells, will it be empty or does it come with the internals? Internals are mainspring, MS cap, MS cap retaining pin, right? If I get a new MSH, do I need to buy a MS that is specified for a Springfield, or will any standard MS work once I have the new MSH? My Springfield manual says 28# spring in the ILS. Non-ILS replacement should be 23#? Also, my Loaded has a magwell that appears to be attached to the bottom of the mainspring housing by an allen head bolt. Will a replacement MSH come with the hole to accept this bolt, or is this a non-standard thing?