I pretty much have all my confidence in powerbait, I do like the pro shake e2, I always have one rigged up, with a powerbait shake worm...
Anyhow, tried the MS tube, does help bringing frogs over slop as lube, and while I let the fish hold on for a second prior to setting the hook, i believe that it works and does not get spit as quick.
I think availability is low unless you are looking for it. Not for the impulse buyer. (at least in my neck of the woods)
Also, and I may get slayed for this, but anything with Ronald Martin on it turns me away, not sure why, just a feeling i get.