The dust isn't a deal breaker as far as I'm concerened. It does look like the rain cap is a good idea that may help a bit with the dust as well as its intended reason. I usually get the drill so muddy once in a while that the fireman that's around there cleans it up.haystack,
We also have a new cap that helps a lot with dust getting on the drill. It redirects it back down to the ground. It was originally designed for Australia to keep the rain out when they are seeding. I do have a few guys using it in Canada that are happy with how it works. Just so you know.
RainGuard Exhaust Port Cap
I've got to know what is so different down under that you Aussies can seed in the rain?
I'm not positive yet, but I think these seed brakes have to come off next year if not before. Too much internal buildup breaking loose and plugging the drops to suit me for a machine that has to cover these acres.
Airgaurdhaystack: I will admit that the humidity and starter/innoculant is our biggest issue to deal with. We are testing out some new plastics for the exhaust port to see if we can improve on the current design and reduce this plugging risk. To be honest I think that the ultimate solution for this is the Blockage Prevention system. This eliminates that issue completely by heating the air stream up. We had customers this spring running in the rain, 24hrs, with a completely dry air system. I think that the combination of the rad and a snorkel kit that draws air from the top of the cart will fix this issue.