The problem of too many lens/domes/strobes on the market will be a challenge to test everything. I've done my tests with my Subal gear and my lens in order to exclude /include some bad/good combinations and to have a good feel of distances/magnifications that each combo can deliver. I've used the test chart I've mentioned above.
I don't mind to where some thoughts and some personal conclusions if there are some more people that have done the same thing, so we can start some sort of database.
But of coarse that it will be just a starting point, because I believe that each photographer should do his own test with is own gear.