Now that I think about it, I don't know how much I want to be taking off one handle and putting on another. It could be a pain in the neck and maybe even have water-tightness issues. Yet I know that I need different weighting for fresh vs salt water, etc. Right now I'm switching weights by using velcro lid type pouches (with soft weights) that are held on to my tanks with the tank-mouning straps. It's a spin-off of using leg weights around those tanks. They work pretty well, but your approach is clener and just better.

If there is no problem with constantly switching out the handles that tread into the Meg's head, then no problem. However, if you see a long-term issue with that approach (let's say you need to switch out handles -- between the smaller SS and the larger -- 6 to 8 times a year), then maybe you would consider a slightly different approach.

When I saw your larger SS "chunk" in the newer photos it occured to me that maybe you could machine one SS "base" (about the same sized footprint as your larger "chunk", but no where as thick). You could then use that base to switch out on it both the smaller and the larger "hand holds."

That single piece of SS base could then be permanently screwed (and sealed) onto the Meg's head, using the existing holes in the Meg's head. You would then drill and tap that base plate so that larger and smaller hand holds could be mounted on it, depending on the weight you are looking to add or subtract. A better idea might be to use your original hand hold size with different spacers, i.e., interchangable parts vs different parts. The machine screw holes for the hand holds might have to have a different location, so as to not conflict with those going into the Meg's head.

If you decide to stay with the two different sizes, then you could make the "chunk" larger (let it grow towards the hose attachment points) and then machine out enough SS to give you the hand hold that is needed. Or you could drill and tap the "chunk" you have and put a smaller hand hold on top of it, similar to the first idea above.

I'm ready for whatever you come up with.

Bill