I remember reading somewhere that the original SS lions were on tally-ho stock that's why it handled so well. But I cannot confirm that.
The original Split Spades were on Tally Ho stock, back when it was still being offered.
But those are NOT the Split Spade
Lions, which came later.
If I'm not mistaken, this is the order of his deck releases.
1) Split Spades (Tally Ho): Tally Ho AoS, I think it had the "Blaine/Liar" joker
2) Split Spades (Bee): Bee AoS, I think it had the Bee joker - this was probably created first but held as David's private reserve until after 1) was released. Same back design as 1)
3) Split Spades Lions: New, similar back design, new custom AoS and "jester" joker. (These may have come out before the public release of 2), but I'm not certain.)
4) Bicycle Split Spades magic decks: custom gaffed decks matching the Split Spades Lions
5) White Lions Series A and Rainbow Editions: Lion AoS, Lion with umbrella joker
6) White Lions Series B and Black Label: changed back to the SS Lions AoS and joker
7) Silver Edition Split Spades: SS Lions design, first to use metallic inks, also probably first to use Magic Finish.
1) used Tally Ho stock
2) used Bee stock, possibly Bee Casino - it was packaged in Bee Casino boxes
3), 4) and 7) most likely used Bicycle stock
5) and 6) - I'm not certain what stock was used.