I've got an old 20" Slingy WMP bass drum that I initially put away because of the extra holes.... 2 Gretsch cymbal holders (1 on each side) and a set of holes at the top that had no similarity to Swivo holes.
But I recently put lugs on it and it sounds great, the WMP is very clean and I like the Gretsch cymbal arm holders. But I can't figure out the holes for he tom holder.... they were poorly drilled, so not factory, distance (center to center) of mounting holes is 3" and the center hole is 1".
It did come with a plate which is 4" square. Here's a couple of pics.
Any ideas as to the story behind this one? It almost looks homemade....
Thx,
Peter