Ok, so I have 2 horns that I really, REALLY want to try out. The problem? Well, I can't find anyone who has both, so far. One is a Kanstul ZKT 1500, and the other a Conn V1BR. I really want to have them both at the same time so I could play them next to each other and make the final choice. The other issue is I'm worried about the Kanstul's valves maybe being an influencing factor. I know that they have a significant break in period and am wondering the best way to try out the horn. Can anyone help with this?