How to best mount Altair Astro Lightwave 66 edr

[uk_friendly_fire]

Seen others screw a vixen rail directly to the telescope's small foot to allow better balancing and still get to focus tube locking screw.

But exactly how is this done with only 2 available threaded holes only a few mm apart?

Is there a better practical solution when using SW GTi mount and what parts did you use?

Edited February 9 by uk_friendly_fire
Jpeg added

[Roy Challen]

Use a slotted dovetail.

https://www.firstlightoptics.com/dovetails-saddles-clamps/astro-essentials-vixen-type-photo-dovetail-bar.html

Edited February 10 by Roy Challen