5 ball Storm/Roto arsenal based on the information given:
Dare Devil Trick - solid symmetrical that will roll early and be a light-duty oiler
No Rules Pearl - strong polished aysm that will snap but is not totally skid flip
IQ Tour Solid - medium benchmark solid symmetrical
Hustle INK - polished solid sym that will push down lane a little further than the IQ
Pitch Black - to control flying back ends and to use on short sport patterns
For tournaments I generally steer clear of skid flip equipment. Sounds like you want to too, given your newfound love of the IQ Tour Solid. It also sounds like you want to steer clear of balls that hook at your feet (like the Sure Lock).
Pretty darn good lineup that Lefty listed for you there. A couple "in lieu of" options, following a similar top to bottom listing as his but will look more THS driven -
Phaze II - Solid Symmetric, strong ball that can handle oil but easy length
Code Black - Asymmetric Pearl, easy length w/ strong backend move, takes really well to surface changes.
IQ Tour Solid - Lefty covered this one
Hy-Road Pearl - Symmetric Pearl, Cleanest ball I've ever thrown down the lane w/ a strong reliable backend
Hustle INK - Lefty covered this one