I have tried them, both deer and elk bombs
At times I just lose my mind and buy stuff "just because"...
The really funny thing is, it would be hard to prove it works or doesn't work for me, as I am hunting big public land.
Anyway, I was not trampled to death by either species. I was also not impressed by the amount it disperses the scent - a faint breeze cleans it out fast. I have more confidence in a liquid that I can put in one spot...but can't say that has ever made a critter show up either...
The more I type, the more apparent it is that I am just a SUCKER...