AMS is completely dissolved in water, so no, I am not going to buy their BS about it plugging tips.  Once it's dissolved, you have a solution and it will not come back out unless you evaporate the water out of the AMS. It's not a problem to handle at all if you just put it in the storage or tender tank when the water is loaded. 

$7 extra per acre for snake oil is ridiculous.   Sounds like a pretty good scam to double your income per acre, if you can get away with it.