Has anyone used / have experience with the Haas option: Extended Z-Axis Clearance; 3.0" additional clearance? We are about to purchase a new Haas and want to know if there are any downsides to the option. I know that it replaces the T-Slots with 1/2-13 threaded holes, which is fine because I prefer it to T-Slots.

Any insight would be great. Thanks!