Has the machined version of the XB-100 Horizontal Base always had 2 locking knobs or was there an earlier version with 1 knob?
Sorry, I meant to post this in the general topic area. ::)
Working strictly from memory, there have been three versions of the XB-100. The original was an extrusion with a single lock. The second was an extrusion with double locks. The third and current is cast and machined with double locks. There might have been two versions of the extruded with double locks, but if so, one of them was very short lived.
Thank you Jeff for the reply and answers. Also, thanks for moving the post. I wasn't paying close enough attention.