Different layout ideas?

[Apolloo]

Created a layout that I think could be good to play with (attached)
-each dozen is a section of the wheel
-each street is of the same colour

So far i have tested betting on the last 2 streets to repeat(6 number bet) with a 18 step progression (-342)...as these streets are the same colour and within the same section of the wheel.

Results seemed good at first... then just hit some losses

~TEST 1 = 220 SPINS   (+786)   no loss of progression
~TEST 2 = 215 SPINS   (+540)  no loss of progression
~TEST 3 = 270 SPINS   (-354)  3 times the progression lost


Any more ideas of how we could play with this layout, or playing with 2 layouts this one and standard layout?

Maybe diff layout will make no difference at all