Good grief! I just use a coupla rulers!
Higher bridge does give some more volume, but everything is a tradeoff. If 27mm projection wasn't pretty near optimum, it wouldn't have become the nominal standard. Learn to really cut a good bridge and fit a sound post, and be really consistent in your work before you start messing with other stuff. If you can't do really good, consistent setups, then how can you tell what difference other changes made. Too many variables.
Good advise which I will follow. Really just curious as to how this is viewed in the violin community.
I have established a consistent approach to the way I set these instruments up. I have even taken lessons from a competent teacher as to how to use the bow so I can better evaluate the sound of these instruments. I am not a fiddle player so this is a bit of a challenge but I am now consistent enough to be able to discern the difference in tone and volume of a series of instruments.
I have never had a really good violin in my hands so the learning curve is hindered. My teacher has a 1920's Becker which I am hopeful he will allow me to look at and perhaps play just a bit. This would help I am sure.