lI have run jets for a while, here's what we've learned.
Take the grate out completely. Turns into a weedeater. I just carry a big screwdriver to dislodge oyster shells if I suck one up, no biggie.
Take the reverse gate junk off, it's useless.
Get a sack of the plastic sleeves, when you need to shim the impeller, nice to have them handy. Also, dismantle everything and apply antisieze to everything that fits.
The little wings they sell at outboard jets will help with rough water cavitating.
And you'll get used to lack of steering control, they won't turn for garbage, but they will slide around pretty good once you learn how.