I just installed an ACME 2315. It's also 15" x 12" but has more cup. Up to you which one you want, someone smarter than I can chime in on the differences. I'm running 3,200-3,500 lbs of ballast and this was a great upgrade over the 1433.

Early on, it seems like people were sizing props so that they didn't foul the trailer but we've since learned we shud run a prop that fits the boat and shim the trailer accordingly.

So, measure the distance btw your prop and hull. Some have said you need 1" clearance, others say you need 10% of prop size. I had over 2" of hull clearance with the 14" prop so I was fine on the 10% rule.

I got shims from boatmate for my trailer but they're easy to make on your own.