Andy,
You wont be disappointed with the shiner fry. Whether they will reproduce in your pond or not is something I cant answer, shiners are just very unpredictable in small ponds. What I can tell you is that pound for pound you will very likely provide way more forage for your fish this season by stocking $250 worth of shiner fry than you will by stocking $250 worth of adult shiners.
You write "Born to Kill" on your helmet and you wear a peace button.
I find this response as intriguing as this topic. I see you just pick them up at fed ex and throw them in. May I ask how large your pond is and do you have shallows with cover for the fry? I am still on the plant spawners in side of this debate but I can experiment with different ponds with different conditions.