If you look at the approved list, the TL is going to have a later approval date. The back story is that the TL, EL, and FL were all developed at the time of CE. The CE discs were so much more damned overstable that Innova was tweaking the molds to try to offset that, thus the L molds. They were just sold as TeeBirds, Eagles and Firebirds so they didn't need approval. So they weren't.
Fast forward a few years and the formula was X molds in DX, Champ and Star. The L molds were sold in Pro. I know, I know, there are exceptions to the rule so don't take that as gospel. Anyway, Innova announced that Pro plastic was going away (couldn't find a supplier for the pellets) and the L molds that were in production would be converted to Star. The problem was that there were already Star TeeBirds and Firebirds (along with the Starfire, which had a popular Pro L version by then.) So they actually had to call the FL a FL instead of just calling it a Pro Firebird.
Then they found a supplier, Pro didn't go away BUT they went ahead with a Star TL, FL and SL anyway.
That was all fine and dandy until Discraft called Innova's bluff at a US Amateur one year. Once Innova was selling a TL as a TL, it needed approval to be legal. It wasn't approved, it had always skated under the TeeBird approval. So Star TL's, FL's and SL's were all suddenly illegal for PDGA play and Innova had to get the molds approved. So if you look at the approved disc list, the listed date for the TL is several years after the TL actually started being produced.
Fast forward a few years and the formula was X molds in DX, Champ and Star. The L molds were sold in Pro. I know, I know, there are exceptions to the rule so don't take that as gospel. Anyway, Innova announced that Pro plastic was going away (couldn't find a supplier for the pellets) and the L molds that were in production would be converted to Star. The problem was that there were already Star TeeBirds and Firebirds (along with the Starfire, which had a popular Pro L version by then.) So they actually had to call the FL a FL instead of just calling it a Pro Firebird.
Then they found a supplier, Pro didn't go away BUT they went ahead with a Star TL, FL and SL anyway.
That was all fine and dandy until Discraft called Innova's bluff at a US Amateur one year. Once Innova was selling a TL as a TL, it needed approval to be legal. It wasn't approved, it had always skated under the TeeBird approval. So Star TL's, FL's and SL's were all suddenly illegal for PDGA play and Innova had to get the molds approved. So if you look at the approved disc list, the listed date for the TL is several years after the TL actually started being produced.