Thinking coffee flavor would make a bait more productive is pretty silly.

what weight  of a jig head do you use  dont remember how big the strike king tubs are   3- 1/2"  or 4 "

i e-mail them once asked them they make every thing else in sexy shad color how come not the tubes  ? :

I bought a couple packs of them last year. I use them split shot style with a smaller hook on a shallow local lake. I do decent, but am not sure if it is the coffee, or it is new to the fish there. Poor boys tubes are the shizzle though.

I watched the Shaw Grigsby show the other day with the guy that did the coffee tube- A lot of research and developement went into that - OH PLEASE-minnows arent bass-period

Man, and I always figured the controversial bait of the day would be the laser lure, guess I was wrong.

I think they probably work fine, the coffee scent helps overcome any human scents or plastic scents. I've used em and haven't caught much, but that goes for most tubes for me.  ;D