i have a 97 skeeter 18'3" with a Yamaha 150 v max. my trp lower unit went out so I switched to a single prop gear case. I am looking for some advice on what prop I should run

I run a Yamaha 25M on my 150 and im satisfied wiith it.

I had that same boat years ago and ran the 25M.

Give Steve a call at Steve's Custom Props in Quitman, TX.

He can recommend the best ones for your boat and how you use it...

my 98 w/98 vmax 23m hole shot good but spun to many rpms unless really really heavy, like everything i owned, full tank two guys fish in wells and in the rain with soaked boat.

24 trophy best all around everyday prop, 25 t-1 was the fastest on it but slower hole shot when real heavy.

12" jackplate 2.5" below pad

^^^^^^ this

Each boat performs differently if you have s chance to try props to see, do so. The most knowledgable person I knownonnthis subject is Steve at Steve's Otops in Quitman.