Is a 1 to 6 spread enough to beat a six deck shoe game with the following rules and conditions: dealer hits soft 17, double on any two cards, double down after splitting permitted, resplit up to four cards with 75% penetration?
As a general rule you need to spread at least twice the number of decks to beat a game. You can have an edge with less but your advantage is at best marginal, and could not really form the basis of an ongoing money-making proposition.
Alternatively you may like to start going to the restroom on all negative counts.