I am only using one Offset bushing to avoid that the rear triangle hits the frame when the shock is fully compressed. With one bushing, compressed length is 214 (216-2) mm, at 63 mm travel the compressed shock length is 151 mm. With two Offset Bushings the shock lengt fully compressed would be 149 mm (216-4) only. Original spec shock is 210/55 mm, which means fully compressed is 155 mm. I did some measurement, and everything below 151 seems to be too tight with no safety margin left. Hope that helps!
Ok. It seems like there is two variable to deal with. One is the yoke clearance and the other is the rear triangle brace seat tube clearance. One other thing, which Mezzer are you using, Expert or Pro? They seems to be in very short supply at the moment.