Positive progression on single number.

[mr.ore]

Just developing positive progression on single number.

SYSTEM RULES:
----------------------------

on start:
on reset:
------------
SUM = 1

before spin:
---------------
BET = round_up(SUM/36)
if BET > SUM then BET = SUM
bet BET units on any single number


after spin:
-------------

on win:
---------
WU=BET*35 units (won units)
SUM = SUM + round_up( (0.25+0.75*2.718^(-WU*0.005)) * WU)
- increase SUM by part of won units WU, the greater WU, the less % of it is added, thus putting part of won units into a "pocket"

on lose:
----------
SUM = SUM - BET
if SUM = 0 then reset

attached graph:
0 - bankroll balance
1 - SUM value

Main problem with this is that there is not enough positive trends. So I want to enhance the progression that if there is a big enough win from positive progression, it turns out into negative progression until SUM is zeroed again.

The aim is to describe this behaviour with a simple mathematical formula like that in on win part.