By looking at the photo I found online, the soft handle is secured by a large hose clamp. Do you have the same clamp on your scooter?
You can simply use a boltsnap and some paracord and secure it just like the lower attachment point on a sidemount tank. Make another bungee loop for clipping the boltsnap when you don't use it. Like the Suex one.
Yes. Mine has the same hose clamp setup. And yes, that is the same thing tbone suggested a few posts back.
And yes, I may do something like that. That is what I was talking about with the idea of the "tacos" a few posts back.
I use tacos like that on my sidemount rigging, too. I like having only metal (encased in a webbing sheath) that is permanently attached to my cylinder (or scooter). Meaning, I don't like putting the cord with a bolt snap directly under the hose clamp. If I do that, and then need to change the cord, I first have to loosen the hose clamp.
I use a taco and then put the cord through the slot in the taco. That allows me to easily change the cord if needed without any tools or undoing the hose clamp at all. Among other reasons, I have found that repeatedly tightening and loosening the hose clamp will eventually cause the gear to strip and start to slip. I'd rather put it on, get it in the right spot, tighten it down good, and then just leave it (for as long as I can).
I made a handle for my BlackTip using a big hose clamp and some 2" webbing. It is VERY similar to the Suex handle. I'm working to find out if a hard handle from a Seacraft Ghost will fit on the Genesis. If it will fit, I'm going to put one of those on my Genesis and then figure out an attachment for a leash. If the Ghost handle doesn't fit, then I think I will make a handle like the one I made for my BlackTip and get rid of the standard Genesis one - and I will put on a couple of those tacos to attach a leash to.