i have a few spools of brownell B-50. i am thinking about getting some more colors, but was wondering if it would be compatible with byc's B-500.
I'm told that they are....they are both Dacron polyester so they should work togther without a conflict,
FWIW my B50 isn't all the same diameter-my Gold thread is fatter than the Black and the Tan I have. Weird but hasn't caused me problems.
Your bow will never know the difference. (there isn't any)
It won't hurt the bow, but the stretch/creep may be different. Although the same basic material (polyester), they are processed a little differently. I wouldn't mix the two myself.
Chad