I forget what I posted previously but if the idea is to stiffen the tip, just slather super glue gel on it.
If the idea is for a tip that stays pliable, Tad used to market a non laminated tip that retained it's shape and was playble to the ferrule - ish...
Super glue would do it perhaps a lot more than I want, and it might get glassy, which I don't want, but I get your point.
Thanks for Tad tip. I will pass that along to a friend who is finding it tough to find a tip he likes.
I didn't find a Tad website, so where you getting those tips?