Not sure macs. The only thing I could suggest would be move the liability up the same proportion your bank moves up.

If you start with $100 and have a $10 liability (10%) then just stick with that. i.e. Bank goes to $110 then stake 10% ($11 liability), $120 10% ($12 liab) and so on.

It's the same as level stakes but you just starting a new level stake amount when your bank goes up but doesn't reduce when the bank goes down.

That's the only thing I can suggest. I hope that makes sense.

Now tell us about the IAS system. Or at least give us the tips.

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