ha, The gt200mk2 and the mk1 are the best heads around. i started using a tronographic rusty box at my last gig at wickerman and it was perfect for the band i am in. i am in need of a 810 to own as i am borrowing all the time. the gt200 is again perfect but the only way for me to get a 810 is if i sell the gt200. My last comment got removed so i don't know if this is aloud? this is not an advert just chat.