Interesting to use the "outside" bets as a cover for the straight up, however the "cover" needs a cover of its own!

By betting "low" and "high", or even the 3rd dozen, simultaneously you are canceling your bets and the 0s cost more, thus no point on doing so.

I've thought, analyzed and tweaked this method for long time till it takes its final form.

One of the things which I've discarded along the way was to start simultaneously 2 targets instead of 1, one would start from outside, lower payouts and gradually move towards the inside, higher payouts, meanwhile the 2nd target would start with a single number and gradually move towards the outside, lower payouts.

Eventually I've realized that this way I'm making my life harder instead of the opposite simply because I'd need double the wins in order to achieve profit and since I cannot win all in 1 single spin then slowly but steadily I'm digging a hole which eventually will turn to grave...

The amount of units per bet payout should be proportional to the numbers it covers, street 3 numbers/3 units, corners 4 numbers/4 units...etc, the only exception is to place a bit more to the "outside" in order to have net profit or break even by winning only either 1 dozen or 1 column and any 2 out of 3 ECs, in such case the net is x2 but since dozen/column have 16 units each and ECs could have maximum 24 units, then net would be 16+24=40

From the 40 deduct: 2x6=12 + 4x4=16 + 1x3=3 + 4x2=8 + 1x1=1 (12+16+3+8+1)=40 break even.

With 1,2,4,8,16,32,64 units max bet the same case would produce a net gain of 19 units.

This is my preferred variation, about the target I prefer to follow the last without charting but payouts should be recalculated when changing between "side", "middle" and "cornered" numbers, unnecessary to say that 0 cannot be targeted by the outside.

Alternatively can be used the furthest back number, the one with the longest delay, or the leading number with most hits, in ties I prefer to keep the older till another surpasses it.