At the moment we´re using 18point crumblers like the Needham ones. We know the French Laurent Lorre and already had bought parts from him, but the problem is to get an offer or even an answer to mails or calls ... We now have a second 750a and would like to test the Guttlers. Wox promised to look for a solution for the Guttlers. But now we already have found a solution to mount them, but I would need advices for adjusting them. Any photos anyone?