I have ours set at 45x mature with .058 imprint interval, so it translates to about 25 minute imprint intervals. it allows for 100% imprint on all but 3 dinos, the lystro, the dodo, and the archaeopteryx. Theres not much room for error though, but wyverns and rexes mature in about 2 hours with 25% imprint each time. here is a google doc that I found from digging through reddit looking for a similar answer previously. it allows you to change the settings variables and see how it affects the imprinting for every dino. super handy. https://docs.google.com/spreadsheets/d/19jnlekfimsftu9jfyfims4ze3d1e1ztmeenxd1rirny/edit#gid=0
For those trying to open the link I originally posted, it seems the original author of the document locked it to any further editing. Since I simply copied the sheet link, I unfortunately don’t have access to it anymore either.
For those looking for options for this, I highly recommend the Beacon app for PC . It gives all of these options for changing breeding multipliers and seeing the imprint values in real time, and it’s constantly being updated. There’s a free version and a premium version, with the premium only being a one time $15 cost. It’s pretty amazing and has saved me a ton of time and hassle.