Game not BJ: Super 8 Race

Has anyone had experience playing these advantageously? Any suggestions as to when credits on the bonus meter make the game "playable". Lund says NEVER in his book - or rather, that even though it may become advantageous at some point, the length of time and variance inherent in obtaining the bounus at such point still makes it a bad play. Oh yeah...does the bonus ever payout automatically, like, say after 50,000 credits? (On Ring 'Em Up, in a similar game from a different manufacturer the bonus is paid out autmatically after 25,000 credits have been accumulated).

Thanks in advance; any info about this game would be much appreciated appreciated.