All my spinner bait living rubber skirts get the Minnow Bath before processing. My jig skirts get the Crayfish bath. This help preserve them even longer. Air Dry baits before storage. Keep Baby Powder on Skirts when in storage page air tight. Living Rubber Skirting will become gummy over time if not dried and Baby Powered often. Storing the baits away with excess Minnow Extract on them will also cause this problem.
Living Rubber is a little more trouble to take care of; but well worth the results.
What is in this "Minnow bath" you speak of?
I put 3 full 3700 boxes of skirt material in my live wells and after a long day on the lake, I forgot they were in there and they are all swamped with water now.