I find pressing at a lower temp for longer gives me better looking rosin (less green chlorophyll) and it tastes better too. So far my limited pressing is just one strain and I get best rosin at 190F for 2.25 minutes. I also find the rosin is easier to lift off the parchment paper when pressed at a lower temp. It is more like butter when done at a lower temp. If done at a higher temp its more like sticky syrup and its hard to pick up. I don't think the yields are as good at a lower temp, but I don't care about yield. I care about quality all the way.
I also find the parchment paper itself makes a big difference in how easy it is to pickup. I have used 3 kinds so far. One was the kirkland costco brand which was just ok. The brand If You Care is really good. And it comes in a roll or sheets. Get the sheets if you want to save time. I love these sheets. Really worked better than the Costco parchment.
Also use an upward picking motion with the tool instead of just a scraping motion. The upward motion really helps. As does getting some sticky rosin on the tool and let that sticky stuff work for you. It will help to lift up other rosin. Its kind of hard to explain.
And I keep a glass of ice water handy and dip the tool in it every time I'm pulling rosin up off the parchment. Just shake the cold water off the tool and then go get some rosin.
Good to see some testing and reviews of rosin presses. And sharing of knowledge etc. And its good to see an affordable rosin press on the market that is not Chinese stuff via amazon.