This system is really easy, make your number of choice. Don't make to many numbers, 5 - 6 pairs is more than enough.
example:
if 8 come, you bet 11- 3 times
if 32 come, you bet 36 - 3 times
If you play in BM casino, play with 2-3 table is preferable.
flat bet is preferable. Down side is very boring.