Dang it, Mark...I had the exact same experience! Even though they replaced the shells for me also I was so disappointed that this got by quality control that I sent a letter to Slingerland and got this response back from Larry Linkin, who was President of the company at the time:I would have to add that I have got nothing but compliments on the sound of these drums, although I find that the sharp bearing edges on the 5-ply shells can make tuning a little tricky...
Hi robbie!
Very interesting! For my problem, I drew up pictures showing the bearing edge issues. Never received a letter, simply because I got the call from Phil Hulsey that he wanted to come over and check out the shells. There's a bit more to my story that I didn't include; when the shells arrived, the bass drum was not drilled properly for the BR configuration. Another shell was ordered and didn't take long to arrive. I was very excited to see that it had been drilled properly and installed all my hardware. Went to install the heads...and they wouldn't go on the shell! The shell was so out-of-round that you could barely jam the heads on! Phil Hulsey had a hard time believing this, so he sent his son to check it out. I handed him the heads and dared him to put them on the shell. He was immediately embarrassed at how out-of-round this shell was and got on the phone to Phil. Another shell arrived within a few weeks...and was perfect!!! As to all my previous shells, Slingerland never requested them back. I honestly don't recall what I ever did with all of them!
Anyway, that's my Slingerland 5-ply story! I love my 1967 and 1971 3-ply kits. Just added a matching 14x14 to my 1967. What a beautiful looking and sounding floor tom!
Mark