Whoa, what a flood of discussion and information!
Seems like we are not getting much leverage on the hilt form, but I guess that is to be expected of the fringe areas around the centres of Solo and Yogya.
To Tunggulametung - don't worry, the hilt is not fixed tightly. I would change it when I get another bone/ivory Cirebon hilt.
As for the use of mendak with Cirebon kerises, I noticed that the older style Cirebon hilts come with selut. If it has a selut, does it still need a mendak?