What's my fourth ball?

[DucksBowler]

A house shot doesn't typically demand a 4 ball line-up but your arsenal so far is lacking a heavier oil solid ball. Nano would be a great ball for that but I don't think I could personally recommend it for a standard house shot. My Mutant Cell solid definitely isn't a ball I use on a house shot. VR Solid would be a good choice if you want to stick with Storm. If you want to pursue sport leagues or tournaments, though, a Nano or Theory would be "solid" choices (pun intended).

[GoKidd]

A house shot doesn't typically demand a 4 ball line-up but your arsenal so far is lacking a heavier oil solid ball.

Understood and thanks for the perspective, Ducks.
I've only found a limited amount of time to roll the Victory Road (pearl), but it's a definite change from my Tropical Heat, so my education continues!