Okay, so these guys here in town make these lovely Oyster-bucket panniers. What do you all think? Personally, I think the weather-proof-ness is a huge plus in this location, but I'm worried about their bulkiness. I've never used panniers before, so I don't want to buy something I can't handle. Has anyone used these before that can comment? Speculations are welcome, too.

Also, -- a little off-topic -- has anyone ever had balance problems with just one pannier? I have quite a heavy load, so do I need to get two or is it possible with just one (assuming it all fits)?

Thanks,
Nicholas