PF, the first year of my pond I stocked it with 5lbs. adult FH, and 8lbs. adult GSH, pallets and large branches were added to aid spawning, no predators the first year. Small fry were observed the first year but not identified.
The second spring 200 10-12 inch trout were stocked, and each year since. The second year I never saw any FH again, this could be from low PH, predation or both. According to my info FH critical PH is 5.5 and the pond was 5.0-5.5, GSH critical PH is 4.5. Since increasing my water inflo the PH runs 5.5-6.0.
The GSH have thrived but they did get that first year to get established. I think the shallow weedy area that Andy has should allow a decent percentage of the fry to survive, but it wouldn't hurt to put 5 or 10 lbs. of adult GSH in to start a spawn this year. Just my 2 cents.
