Ah, thanks for the reply!!!
Just tried out your theory and yes after 6 disaster drops the bonus was held but on the next ball reset again.... guessing this is the game rules then??? basically you get 2x balls to get 6x river bonus if you go up disaster drop 6 times... if you fail vacation jackpot is almost out of the question... would have thought once you hold a bonus it stays the whole game...
while testing this my spine chiller optos have decided to start working again!!!! my thought was at the end of the ramp must be where they are supposed to be placed and i forgot to install them but the ramp must use the optos just behind big foot and they were not registering... maybe dirty or on the way out....
does anyone think a raised plastic insert of 1/2mm would make the ball jump 3cm in the air or is there another reason the ball could jump to the end of the disaster drop ramp... maybe a jamming roll over wire?? seems fine when i touch it tho..