I have a 400 Pro combo and will be looking to add a cab in the future. Can the 400 Pro also push the Fender 210 Pro cab? Fender's website is very vague -- it has a little information about adding the 115 Pro cab to the 400 Pro combo, but, I'm definitely more into 10's than 15's. The 400 Pro is supposed to push 350w and go to 500w @ 2 ohms when you attach a 115 cab. So what would happen if I added the 2 10's (the 210 Pro is 350 w)? Would I still get 500w? Would my total rig be underpowered? Any help would be greatly appreciated!