The Amita is a prop with a good reputation.4 blades are said to have stern lift on hole shot and bow lift at speed.
Usually a 4 blade will stay on plane easier at reduced throttle,seem smoother and respond better around the dock.
It may sacrifice a little top end compared to a 3 blade.It is usually suggested to drop an inch when going from a 3 to a 4 blade.
The Hustler is an aggressive prop that produces close to ss performance.You may want to consult with them about dropping an inch in pitch
going from the 19.When going 4 blade Solas to 4 blade Hustler.