Yes, my custom is different, easier, and more precise. After pre-drying the print, the mounting tissue (trimmed just slightly smaller to prevent any overlap), is tacked to the back of the print using the taking iron with a tiny slip sheet of silicone release paper in between. Then the tissue is permanently bonded to the back of the print in the mounting press, obviously with a full oversized sheet of release paper in between the back of the print and the reusable matboard sandwich itself.
When that has cooled off under weight, the resultant print/tissue ply is trimmed together, at exactly the same size. Then comes the final procedure. Once the print is precisely positioned where I want it on its mount, I briefly immobilize it using the tacking iron on the face of the print (but no release paper in that case!). Then into the press for the final time.