Nice history catyjane. If you've got the knack for that kind of research, I wish you could investigate what happened to the Powertip company in Canada.
They made fantastic sticks (awesome weight and balance) with grooves in the handle for an easier grip. I used them about 15 years ago...got off track from my drumming with a day job....then when I returned to buy more, found out they had long since disappeared.
HeadHunter is the current Canadian stick maker that makes sticks with grooves. They've got the same cut as the Powertips but not quite the same weight and balance. I'm going to try and apply a finish lacquer to them to see if I get back to the Powertip form.
I wish I liked
Vater, but once you spend years finding the perfect stick, it's very hard to change.