I ordered 8.5/9.5 +23/+24 (Volk GT-7's in Diamond Black)

The 8.5 +23 is in stock, the 9.5 +24 is on backorder and not available until the end of the month.

They gave me an option of going with 10.5 +24 in the back for a few more dollars. These are in stock.

Any reason not to go ahead and get the 10.5's?

I'm still trying to understand sizes, offsets, what works with BBK's, what works when lowering, etc... Any help for a noob?

 

I would wait for the 9.5" cause then you will have the exact wheels as I have. Unless you have plans to stick some real wide rubber out back then the 10.5" is just more weight. I can tell you the 9.5 +24 barely clears the Stoptech 4 wheel 14" kit, but it should work with others as well.