Using irish moss & gelatin here ... and also get crystal clear results. Glad to see that there are different procedures in use for the gelatin. Means that it tends to work well a couple of different ways.
I only use a half-teaspoon gelatin in insta-hot water (190-F). I let it sit for only a few minutes.
When I read up on it last, the gelatin will attract those chill-haze protein-phenols and stick to them. So I always thought you need to induce the chill-haze first, so that the gelatin will work best.
I cold crash my fermenter for a few days, then keg it. While it is still cold, I add the gelatin solution, purge with CO2 and give it a gentle couple of rolls to mix. Then after letting it carb up, it pours clear after about a half-pint.
---LexusChris