It would be nice to meet everyone from the forums and have sparring matches.
And this is the point. With minimum protection of a fencing mask and hockey or other suitable gloves, any of us can get together with any others of us and spar without limitation or fear of injury. That way neither party is limited in their techniques and it never becomes play fighting.
We have tried those gloves with the knuckle protection. They offer little if any protection from hand strikes with the weapon since the primary targets are the fingers and thumb. Not to mention, even with hockey gloves on folks still bruise their Finger tips.
This is an open invitation: Anyone who wants to come practice and spar with us here in Ann Arbor is welcome to do so. Just remember that our rules for sparring protection are as follows: full head and eye protection, heavy padded gloves for hand protection. We have the gear so feel free to contact us and stop on by. But we practice safe and protected. All we do is put the gear on and go.
Protection, like armor, is always a compromise. In this case, the compromise is with dexterity. Many of the techniques we teach cannot be done with heavy gloves, so most of the practicioners wear airsoft gloves or light motorcycle gloves. With midgrade blades it's OK in my opinion, though I wish the thumb were better protected, as you correctly pointed out. Finger tips, on the other hand, due to the way we handle the blade, are not a target. Me, I add volleyball finger protections to the index and middle finger, and I feel I have a good compromise.
I used to believe that too. I will post a video performing forms and techniques wearing full gear. We have not found and limitations in dexterity, limited movements, or range of motion when using this gear. The fencing helmets do NOT obstruct any of your field of vision and provide very good protection. The fact of the matter is, anything you can do in sparring can be done with the gear on.
Regarding the Lacrosse masks which somebody else mentioned, ...
Lacrosse masks may be good for practicing velocities or kai kan, but not for sparring. Fencing masks and other sort of things are easy and relatively inexpensive to find in Europe.
I also know that there are hockey players in Europe and the gear is very similar to Lacrosse. We use the street hockey and lacrosse gloves because they are usually cooler to wear.
Here are some European places for hockey equipment:
http://www.hockeyoffice.com http://hockeycorner.de/http://rexhockey.com/en/http://www.Greatskate.se/