The Toro Flo Pro valve was discontinued a long time ago. Unless you like to spend your spare time fixing these valves over and over (and over and over and over) again, you just replace the entire block of valves at once.
I also tried to fix the solenoid for toro pro. though most worked one does not shut off completely. Now mind you unless you wait a few days you would most likely not notice as it is looks to be off. it is not. What would be a good replacement for the Toro Pro valves?