I like to use less preload than a lot of guys on here, I shoot for 1/2 turn preload with aluminum heads at room temps, 1/4 to 1/3 turn on iron heads at room temps. which gives me between .012 to .020 when warm or hot . I do reset them once warm up and shoot for 1/10 to 1/4 turn max preload with both types of heads
With less preload I believe you have less chance of floating the valves due to lifter pump up