Morris has made a good explanation. I have seen a number of forum members comment on the suffiness of Peashooters like Misty's, but that some can play them fine with the right mouthpiece and in the right playing environment. I think I pointed out awhile back there was another one like Misty's on ebay and I believe it sold for $30. Don't know if it was in as good shape which you can only find out on close examination. Also think it was a mid 30's horn, as Conn made Cavaliers from 33-48 according to the sources. No use paying some else to do repairs you can do yourself, and then you have satisfaction of contributing to the playability of the instrument.
After much work and frustration, I finally got the diverse replacement valves on my Besson aligned and working reliably so I can play it in my musical groups and not worry about sticking valves or stuffy sound. I do feel like I accomplished something of value.
Misty, hope you get lost of quality time on that horn and it sounds like you are open to expanding your stable. I am also, but my wallet isn't cooperating.
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Dave Rafferty
07 Barrington Trumpet, 1972 Reynolds Medalist
55 Besson 8-10 trumpet
55 Roth by Reynolds Cornet
73 Olds Ambassador Cornet
30's Czech small bore Trumpet
Getzen 80 cornet, 33 American Standard cornet
66 Olds Ambassador Trumpet
www.kalamazooconcertband.org