Now THIS.......is pretty much dead on. Every word of it.
Grubs were one of very few baits that I amped up the plastic. I used MF super soft back in the day. Don't know what "soft sinking" is? Here on the west coast, guys wanted stuff SOFT.........but my grubs would tear up too easily......and they let me know it. Once I went to medium, problem solved.
If Epic molds looks like Kalin's, buy it. THEN mess around with the plastic until you get the action you need.
Oh and nailed it with Lure Craft. Tons of awesome single tail grubs. And Del's stuff was unmatched. Peace :-)