Which is a better setup?

I have an edge comp now but have been thinking os switching to an edge EZ and getting a TST or a redline box to match up with it.

Can I put a TST or redline to a comp?

I have the wire tapped on the comp now.

 

You should be able to run the TST with the comp you already have. You just have to tap the wire with the TST and not the comp. Then the comp will basically be the ez. I would do this. That way if you don't like the TST/ez you still have the comp to fall back on. I have also heard of people stacking the Redline FMS with a ez, comp, or van aaken R.
I have only tried the comp/smarty stack but I would sure like to try a TST stack. Good luck.

 

That's Jetpilot's combo- (drag?) comp in ez mode with a redline. That truck has made *huge* power. I've seen his 832 hp dyno chart and the with the redline box his truck pulled hard past 3200.

Upgrading your comp to drag comp might be enough to make you happy unless you just want to go crazy with it =P