by Gavin » Mon Jul 06, 2015 1:24 pm
Hi totschillaci,
I have moved your post to this existing topic thread, which already discusses the issue.
Please note that I am planning to also add a completely separate stop-loss feature in the near future, that is not tied to the offset feature and thus is not affected by the size or green value of the offset bet.
The reason for the current implementation (i.e. the stop-loss is effected by simply moving the offset bet to the stop-loss price if that price is reached), is that it is the quickest way to perform a stop-loss. It is the quickest way because it only requires one API order, which is the order to move the bet to a new price (called a 'replace' order in Betfair lingo).
Whereas if the stop-loss bet was effected by sending a new bet at the desired stop-loss price, then we'd need two actions. One action to cancel the offset bet and the second action to send the stop-loss bet. Therefore the time taken would be double and this would probably reduce the chances of getting the stop-loss bet matched at the desired price in fast moving markets.
Generally speaking, you might prefer to not use the green feature (when using the combined offset and stop-loss) unless the stop-loss is close to the offset price, because the imbalance becomes greater when the two prices are further apart. Or you only use it when you know that you have time to green (red-up) manually afterwards.
UPDATE (03/10/2015) - the stop loss now works with the green check box setting, so it can either have green stakes or level stakes. There is also now an independent stop loss that works by right-clicking in the ladder. Please see the user manual for full details and my post below.
Kind regards,
Gavin