Fixed Vane vs Variable Geometry Turbochargers...

[Rig Wrench]

I had an idea like this for a while.
I think I't would be the best of every world. Not for most, I assure you, but for my truck that only sees seasonal local work and competition use, I think it would be cool. Best of all worlds. Quick spool and response of the vgt, but the high charge flow of a large fixed vane. Should allow to be able to relax the sliding ring in the vgt, lowering back-pressure, yet still provide a large cfm of air without over spooling anything.
Just theory anyway