The hybrid vigor of SAE creates tremendous growth in a short period of time. The first year they will generally achieve about 2-3" more growth than WAE. End of 2nd growing season they are 3-6" longer than WAE.
The Saugeye is much more aggressive and will hunt in shallow, turbid conditions when Walleye have found more comfort in deeper, cooler haunts.
There is currently only speculative data of RW, as no chart exists for this at this time for public use although there wasa chart published but it was determined to be skewed as fish grew in size, so the alpha and beta have not been revisited that I am aware of. If you use a walleye chart, RW always shows higher than truthful for the hybrid, for example, if you take an 18" walleye at 100% RW, using the same chart for an 18" saugeye, it will assume about 115-120% RW if both fish are eating as they should.