[spyu]

When I upped my bets it was basic spread on the conservtive side.
TC>=2-1unit, 3-2units, 4-3units, 5-4units, 6or higher - 5 units capped.

The best thing I have come across as of late is the Hi-Opt II system. If you can implement all the number variations(which is quite a mental feat) and use a 1,2,5,10,15 spread 1-5TC betting progression. You can beat the shoe games like the 6 deck at the Bellagio by quite a margin. But again the thing is being able to play perfect and bet perfect.