Spacing is set to 55mm as per the Starizona specs. From the image though, it looks a little long so have removed a 0.8mm shim from the imaging train to hopefully address that.
Collimation: I use the
Infinity Catseye XLK tools along with a TS Optics Concentric eyepiece to centre the Secondary mirror and all looks perfect. To verify i drop a Farpoint laser (also collimated) into the tube to double check, and its always perfect too.
Im going to try a different Coma Corrector tonight and see if it fixes anything or if the triple/triangle stars still persist.