Have you tried any of the flight shapes? I've seen you on the Powell forum from time to time, but SLAP is my home.
I believe the flight decks are a different construction on the same mold - meaning a 242 shaped flight should be the same shape as a 242 maple, just thinner.
I have both a 242 (8" full nose) and a 248 (8.5" more tapered nose) conventional. They are flat. I have the 8" set up with Thunder 147s and 51mm wheels and it's a good shape. I don't mind the flatness of it skating street and it pairs well with the Thunders.
The 8.5 uses the same exact same concave with a longer drilling so there is a little less flat between the bolts and kicks. It also measures out at almost 8.625. I set it up with Indys and 55mm wheels. I skate a bigger board in pools and other transition and didn't dig the flatness at all. I like a steeper nose/tail in these situations to help me feel locked in and I just wasn't getting that. I took it apart after skating it about 5 times and will probably give it to some kid with a wrecked deck.
Some of the bigger flight decks use the K15 concave, which I love in transition. The 192 shape (9.26") set up with 169 Indy Ti would be an amazing setup.