Using "Best" on lay market with a maximum value

I am trying to create a trigger which places a lay bet at "best" price

I have added a condition    selections lay price is equal or less than max_lp (where max_lp is a user variable set in constants)

Should this method work or does the expression "best" not return any value to be used in the calculation.

I ask because I have not been able to get it to trigger but wasn't sure if it is this possible issue or the fact that I am presently running 2 instances of marketfeeder with different triggers, one on real account and one on demo.

hi
if you have a condition and selections lay price is equal or less than max_lp
then in the price box you put best, it should work ok.
so there must be another condition stopping the trigger from working.
if you still need help, then add your trigger so we can see what the problem is.

mcbee