Play the same color for both bets.
Bet A uses a martingale.
Bet B lets the bet ride.
Both start out with the same bet amount.
When the martingale fails 7 spins in a row, which bet system did the best, or are they equal?
Martingrail did better.
Not sure if I understood exactly the question.
Still, let'S see. If one reinvested not all profits, but parts of it, such as Fionnacci, if 7 win in a row or 6 win + 1 loss:
Spin bet win br lose br
1 1 1 2 -1 0
2 2 2 4 -2 0
3 3 3 7 -3 1
4 5 5 12 -5 2
5 8 8 20 -8 4
6 13 13 33 -13 7
7 21 21 54 -21 12