Yes, sounds good. The box suggestions I have listed on the SSA Site, are not requirements, but suggestions, so don't feel like you are missing out or have to stick exactly to it.The Hellion requires 3.00-3.50ft^3 @ 28-33hz w/15.25^2 of port per cube. I've got 3.76cu ft with a 6in aero with 28.26in total. That's 7.52 per cube. Will that be ok since it's an aero?
Yes, if you option for the extra spider, it will be just a little longer of a break in period.Does the Hellion loosen up pretty good after break in?