Triggers (yet again)... sorry

[Bassdrinker]

Good afternoon.

Sorry to be a pain again but if anyone could clarify the use of triggers it would help.

I'm currently using a trigger of 'BACK-PL5-SL2.5P-L-IP' and assume (always dangerous) that this breaks down as

BACK Back bet
PL5 Aim for 5% profit
SL2.5P Set loss at 2.5%
L Level out
IP Keep in play

I'm sometimes getting the situation where the lay trigger is not firing because the odds have gone below the stop loss of 2.5%.
To prevent this, I think that I need to add a chase parameter every 0.2 seconds. Hopefully this will make sure the lay bet is at least matched even if not at an optimum price.

Am i right in thinking that the stop loss goes after the level and before the in play? Making the trigger BACK-PL5-SL2.5P-L-SLC0.2-IP?

Thanks for any help.

Bd