I just purchased a pack of 3" how do you guys go about rigging them? What kind and size hook? 

I use the 4/0 Trokar swimbait hooks on my 3.8" swing impact fats. 

great on a swim jig

 

 

They work well as a trailer for all sorts of stuff, I usually like to rig it on a jig head or a weighted EWG hook. It just comes down to the cover you're fishing. I go weedless for fishing around grass or brush/logs that stick up near the surface. If it's sand/mud/silt bottom with sparse rocks or cover I like to bump it along the bottom on a jig head. 

Weightless EWG hook, wieghted EWG hook, jighead, swimjig trailer, spinnerbait or chatterbait trailer. They are pretty versatile. 

Look up the owner flashy swimmer...my favorite way to fish them. Swim retrieve or fished like a Texas rig

They work well on a scrounger as well. Everything else has pretty much been listed. 

An underspin jig rigged with one works well

3" fat or slim version. I crushed 27 crappie one day on the 3 inch white sight flash on a weighted zman trigger hooksize 2/0 I think.

In CT we don't have big bass. 5 lber is a catch of a season and I use 3.8 fats and 4.3 inchers. I rig on a 3/0 to 5/0 Keel weighted, spring lock 1/16-1/8 Oz maybe even a 1/4 if I want it to run deep.  The key is the twist lock swimbait hook. Kietech are super soft and that's what makes them have so much action. The twist lock with prevent the nose from tearing every fish and you will only have to worry about the tail being biten off. One thing I have noticed is if you don't rig them super straight they tend to ball up or bend up and get kinked on rhe hook as if their back is broken. If you rig them proper every fish in the lake will follow if you cast close enough. Good luck and there are many posts like this with other useful info

My favorite ways to rig them are on a swim jig or a keel weighted swimbait hook