Which Larue mount for Aimpoint T-1 & MBUS sights?

I just picked up an Aimpoint T-1 and wanted to know which Larue LT660 mount I need? I have MBUS front and rear sights and I’m not sure if I need the tall mount since the sights are out of the way when they are down. Thanks in advance.

The tall .660 mounts if you want a lower 1/3rd co-witness.

Will I still be able to maintain a proper check weld on the stock?

Absolutely. I use the same one for my T1.

Thanks.