UPDATESTAKES OR BACKR?

[BERTRAND]

I am writing a trigger sheet which will "Dutch "Back"" many selections per selected races for a target profit. I thought that I would have no problems with modest stakes getting all selections matched pre play(0-20seconds). However, more than a few times one or two selections are not getting matched.
Some of the stakes are below minimum. The odds column is "current odds" and the dutch stakes vary with these odds. It's usually a "steamer" which doesn't get matched.
Although it would upset the "Dutch" if the unmatched bets were updated it could save a sizeable loss.

1) How do I use Updatestake?

2) What is the chronology of BACKR in a below minimum stake situation?

3) I have a COUNTA for the bet reference column to prevent any further bets after the initial batch of requests, could this be a reason for unmatched bets?

4) I'm not sure what settings to use for "below minimum stake batch size" or "updates batch size" ? (I don't need to use these because of lack of funds)

BERT