Answers to your original question
I checked the Mohegan Sun Web site and it clarifies that they have late surrender on their BJ tables. They offer double down rescue (a form of 3 card surrender) on Spanish 21, which is standard for that game. Here are the answers to your original question for the following game:
8 decks
6/8 penetration
S17, DAS, LSR, DA2
$10 min
House edge = 0.39% with perfect basic strategy (see links on the left side of this page for a link to a basic startegy generator for this game)
Here are some count strategies, assuming Hi-Lo, I18, with NO counting or playing errors. Increasing your BR by 150% will drop the ROR to a more managable 5%.
Play-all 1-12 spread: EV= 2 units per 100 hands, BR required for 13.5% ROR = 1,025 units ($10,250 for a $10 unit).
TC<1 = 1 unit
TC+1 = 4 units
TC+2 = 9 units
TC+3 = 12 units
Play-all 1-20 spread: EV= 3.2 units per 100 hands, BR required for 13.5% ROR = 1,257 units.
TC<1 = 1 unit
TC+1 = 5 units
TC+2 = 11 units
TC+3 = 17 units
TC+4 = 20 units
Back-count:
Entry point = TC+1
TC+1 = 1 unit
TC+3 = 2 units
TC+4 = 3 units
TC+5 = 4 units
EV= 0.63 units per 100 hands, BR required for 13.5% ROR = 165 units ($10,000 BR = $60 unit).