There are so many variables, alright, I thought with the number of 930's that have had keel mods, the different designs etc. may have brought out some good ideas.
Apparently some 930's with standard keels still outperform the "upgraded" ones, so it is hard to decipher what the answer is, some original 930 keels aren't too bad though making for variations in comparisons.
A 1034 keel is a basic fin keel and around 26 yrs old.