The idea around this system is based on the 6 quads that span the length of the carpet - substituted by 2 splits when it is not possible to bet a quad based on the rules below.
We run a virtual spin, hoping the first number we track will land on column 1 or 3 - we then cover the quad that is below/above the number thereby "blocking" those streets from filling up. If next spin a number lands in column 2 then we block it inside with 2 splits on the outside in place of the quad. We repeat this until we either get a win on the quads/splits. Once 6 quads (with of without any substitutions from weighted splits) have been placed, the same bet selection is repeated until a win. The progression needs to gradually increase to allow for a new high on a potential win.
Does it reach the table limits or will a win always result before the BR is exhausted?