Buzz,
I'm on my third application of SE on the lakes where I'm using it exclusively. All of them received an initial 2 gal/acre of liquid to start. To be fair, I've never had a fertilizer bloom last longer than 10 weeks after it started. All of my clients' lakes have required additional fertilizer apps by now, I'm sitting at 4 to 6 apps on all of them as I type this, with three of those occuring in March and April.
If Scotts gave you a bloom <24" through Oct., that's great results and you probably won't do better.
