[crackerjack]

This is similar to what I use, but not exact.
12 minute blinds.
10/20
20/40
30/60
50/100
75/150
100/200
150/300
200/400
250/500
300/600
400/800
500/1000

or 15 minute blinds
25/50
50/100
75/150
100/200
150/300
200/400
250/500
300/600