What kind of shells are those? Mahogany? And do those have round bearing edges? And why did you go with such large tom sizes, was that a preference thing or do you find the larger sizes have more character?
I'm pretty sure they're maple shells with whatever bearing edge Slingerland was using in 1977. I do know that they were 3 plies with reinforcement rings.
The kit was originally 13-14-15-16 concert toms on stands with a double-headed 18" floor tom and a virgin 24" bass drum. I got it because it was the best available kit on the used market in Columbus, Ohio, in May 1977 (it was practically brand new and the seller gave me the receipt so that I could pick up the back-ordered throne and hi-hat). I was 15 and thought it was cool, but didn't give the logistics of that many large drums any thought.
And even after I joined my first band and only found myself needing three toms, I never thought about trading down to a smaller set. I just installed bottom heads on the 14 and 15 (they were already positioned over the bass drum on their stands) and mounted them on a Tama post (to eliminate two stands that didn't provide good mounting angles anyway).
I used these drums until 2001 when I finally realized that they were wrong for most of what I was doing.
Al
