Bet Spread for 6 deck game

I'm trying to come up with a simple bet spread for the green chip level.
I came up with this:
TC 0-1 ...$25
TC 2-3 ...$50
TC 4 .....$75
TC 5+ ....$100

This spread looks like a simple progression.
It only varies from 1 to 4 units, and might not draw might heat.
I don't know..

Any comments or suggestions please.