You need to take your boat out and run it as you "normally do" and observe the highest rpm you achieve.
Then you want to compare it to your WOT range for your motor.
If your motor is say rated for 5500-6000 (and I'm just picking numbers here) and you are only making 5000 rpm you have "too much prop".
For each 1" of diameter OR pitch you change your rpms by about 200.
So in this example you could run a 14 pitch (15 diameter) and increase your rpms by 600 getting you up to say 5600 (within the WOT range).
Stainless flexes less than aluminum or composite so it "bites harder" and reduces your rpms (all else being equal) by up to 50 rpms for a given diameter/pitch.
Likewise, a 3 blade bites less than a 4 blade, so going from 3 blades to 4 would drop your rpms another 50 rpms or so.
So, again, in my example while a 15D14P composite 3 blade prop might make 5600 rpms a stainless 15D14P 4 blade might only make 5500 rpms.
It's not always as simple as saying "this prop" will give you a better hole shot because if your motor won't turn it as efficiently then you will lose some rpms and may end up with the same hole shot as a different prop.
And all the "charts" only give you a place to start.
See what your boat is doing with the current prop and start figuring from there.