How do I use the WAITUNTIL flow control for values less than 1

I dont usualy want my spawners to wait a full minute between steps but I do need them to have a delay..
I've tried using very small values of duration such as .2 with mixed results..

I usualy overcome this by making a timedlever object near by and have it trigger based on the state of that.

duration values less than 1 will work, but remember that the min/maxdelay will still set the lower bound on the interval. So you cant consistently wait any less than min/maxdelay. In other words, WAITUNTIL cant force the spawner to advance faster than min/maxdelay.

Thanks Arte