Randall XL Cabs

[GuitarGod87]

I recently bought a RS412XLT100. The tone I got out of my amp is way better than what I had with my old Peavey Cab. My question is, which cab is better suited for thrash? I have Celestion 100's in my current cab. Would the Vintage 30's sound heavier, cleaner, fatter, less low end? How about the GT75's compared to the GT100's for thrash? I'm also using my SL+ for rhythm (slayerish sounding), my Ultra XL for lead, and a Black Face for clean. I'm also looking for a second Ultra XL, so if you're willing to sell one stock, feel free to contact me.

Thanks
Nocturne