If you go with heavier strings you will probably want to add a spring to the back and slacken off the retaining screws rather than stick with the stock set up and push the retaining screws all the way back. As you will know as an engineer, the more you can spread the load to the middle of the continuum the better in the long run.
If you are setting up from scratch with new strings, then the best way I have found is to get a wooden wedge in behind the bridge to hold the block roughly where you want it and then tension the strings to pitch. You then set the springs then so the wedge just holds in place and you have the right balance point and you can move on to saddles and pivot point adjustments. Rinse and repeat until you get where you want.