Does anyone know if that Arca Swiss Z1 ball head top plate is compatible with the Kirk angle-bracket?
Our custom machined camera and lens plates are Arca-style compatible
P.S. RRS say
all Really Right Stuff plates and rails will work in all screw-knob versions of Arca-Swiss style clamps.This includes screw-knob versions of Arca-Swiss style clamps from Markins, AcraTech, Arca-Swiss, and Kirk. BUT only Really Right Stuff and Wimberley plates and rails are guaranteed to work with Really Right Stuff lever-release clamps.
P.P.S Sunwayphoto clamps have an adjustment for exactly this reason
All SUNWAYFOTO Lever-Release clamps are user-adjustable, can fit plates from different manufacturers as RRS,Markins, Arca-swiss, Acratech etc.
So it may depend if your z1 has "flip-lock" or not.
The Z1 has an adjustment as shown in this photo (from the digital picture)