Just a Slingerland Resortation update: All holes in shell have finally been filled. I've attached some before and after pics of a few nasty holes from some Rogers swivo legs that I removed and replaced with Slingerland legs. Holes were filled with Birch and poplar dowels. Next up - patching holes in the wrap with some WMP I got from Mcjnic - thanks!
Pic 1: the Rogers legs that came on my slingy bass drum
Pic 2: the Slingerland legs I added
Pic 3: Holes left by the Rogers leg mount and spur
Pic 4: Dowels filling holes
Pic 5: Dowels in inside of shell