I think poker did start as a short deck game with 20 cards, and evolved into a 52 card game over the waters of Mississippi. No need to revert to old ways, just play Omaha Hi/Lo if you want more action
At such a depth of stacks (200BB) a game with a short deck looks very strange. Increasing the blinds will make the game less dynamic.I think, 100bb is not enough for short deck game.
200~250bb is better.