When using a Predator, how easy is it to switch running configs? I don't need to change configs while driving down the road but would it be quick and easy to revert to near stock timing to burn 87oct for a while and then later get back your configs that your worked so hard to tweak on the dyno and burn some 92oct most of the time?

Take a look at my mods in my profile. What gain at the crank could I expect with a predator and several dyno runs and no additional hardware/mods?

 

Sounds like it would be pretty easy:
http://www.diablosport.com/downloads/manual_U7146.pdf

 

It takes about two minutes to load a tune (config, as you call it).

 

i keep hearing things about the predator tuner....so is it worth the money?

 

Aside from the gains in HP and torque from the base tune, you save yourself $80 on a speedcal if you swap gears, $60 on MIL Eliminators if you get an off-road midpipe, $120 on a timing adjuster, $50-300 on a shift kit if you have an auto, and you can make adjustments to it all day long. If you know what you're doing, you can tweak the tune and squeeze out a little more HP/torque.