Per Zone Vertex Buffers

I was wondering if anyone has either per zone vertex buffering or some sort of multiple buffer pooling working for interiors. Vertex buffer overflows have been a pain in my side since MS1 and I am growing tired of it :(. Breaking the dif into sections works, but you always have that light leak line and a ton of console spam where zone manager goes nuts. One of the GG employees at one point said that GG was working on it but don't expect it for at least a year (that was 3-4 months ago). I was wondering if someone in the community may have already done it and would be willing to share the modifications.