[nick.h699]

i completed my trimix training this year and bought v planner while i save for a trimix computer, i have got to grips with most of it, but the deco steps in the configuration screen are confusing me.
i dont understand the 6m deep and 30 sec deep part of it. i have trawled through the help file until i am cross eyed but am still non the wiser.
whilst playing with the programme it some times gives stops of less than one minute.
can somebody put me out of my misery and explain how it works.

thanks
nick