I think cold pre pressing both flower and hash are critical in getting a decent squish! especially hash.
With my hashbags cold pre pressed, with my starting and warm up temperature being with 130 degrees, with just the contact pressure to firm resistance, I will get flow beginning at 35 to 45 seconds into the warm up. After one minute warm up is when I start increasing my pressure and then bring it up to the max.
But there are definitely optimal temperatures and pressures that will give you the best quality and the most results. And naturally it varies from strain to strain.
Now, that all being said, where this will make a Noticeable difference the most is probably with higher production than what any of us here will be doing. Optimizing results affects the bottom line in that case