Originally Posted by TLS
I emailed him as well.
Here's the abridged version.
Keep it simple.
Keep it plastic.
Keep it durable.
Keep fertilizer prills from jamming the impeller.
A few tweaks is all they need.
I haven't ever adjusted the rate settings on either model for over 10 years.
I'd rather NOT have it grease-able. Just a sticky mess waiting to happen. Sealed gears is all thats needed.
Same Here, just keep it simple and durable. I also think grease-able and stainless is too much. Just make it durable enough to last more than a 1/4 of a season.