I use LSA. I don’t shoot as often as I would like, and I have several guns from which to choose before a trip to the range. So, when I clean one up and put it away after shooting, I never know how long it will be until I pull that particular one out again. LSA does not evaporate, and a film of it will stay for years.
I cut pieces of chamois skin 8”-10” square and treat them with a few drops of LSA. The “skins” are each stored in little wide-mouthed jars. I keep a chamois jar handy, in the shop, by the workbench, in the gun cabinet, wherever needed, and pull the skin out and wipe down any gun that gets handled. The chamois is tough, lasts for years, and leaves no lint. I put 6-8 more drops of LSA on each chamois now and then. I also put some on a patch for treating the bore of each rifle as part of routine cleaning.
I haven’t seen LSA for sale in quite a while, and I think it has probably been discontinued. Sarco still had some for sale online, last time I checked.
Best regards,
Notchy Bob