When i first started bass fishing i purchased around 6 or more different scents to test out.  My first one was the orginal baitmate bass and i been using it ever since.  I been using Yum & Riverside crawfish scents too.

I did notice if i use baitmate bass scent and i change up sometimes to a garlic scent. 

On my senko type baits i don't use a scent on my first cast.  If i get a strike and a miss one shot of scent is a definite hook up on the next cast.

Becareful using scents from shore or with others closeby too because everyone around you will catch fish i proved that many times.

One shot of scent covers the human and tackle box oders.    BB

Wow baitmate. Didnt think that stuff was still around. I like Jacks Juice, megastrike, and jjs or spike it dyes. Depends on the situation

Speaking of Baitmate, I have had some success with it and bass, but where it really shines for me is in Trout fishing.

Years ago when Baitmate first came out, I was at a fishing expo and Baitmate was handing out free samples. They had a kiddie Trout pond there and none of the kids where having any luck. I sprayed some on my kids setup and right away he got a trout. Since that day I have used it many times while out trout fishing and to this day it still produces trout when nothing else is working.

for me the best scent made is Pro-cure super gel . this is a must have scent when throwing swimbaits and using soft plastics , period !!!! 

http://www.***.com/Pro_Cure_Super_Gel/descpage-PCSG.html

The best I have seen in my life is no longer made.Manns fs454 not an attractant, but I would show fishing partners how I could lead a bass around the boat without setting the hook.This was around 1980 or so.