I am using 90 micron I know most are using 90 and 120 for flower rosin and lower for hash and kief, and Yes I am doing bottle tech style
Try,letting the plates rest on the bottle tech column for 1 minute before applying any pressure.It helps get the juices flowing so-to-speak,a warm up if you will.
Do you know the moisture content of the buds?
I squish at 60-62% RH(buds in jar hydrometer reading)
Are you grinding the bugs up and bagging them,or pulling them apart into smaller nugs?
Frosty nugs +moisture in=Rosin flow out.
I'd start with hydrating the same material first,a couple of drops of h20(distilled or ro) and you can cross out 1 simple variable.
I use 120 micron for flower.