It kind of wicks to the other side, but my next setup is a dual nozzle type for sure. It'll keep the chain cleaner on the inboard side.
I don't really understand chains. On my old bikes, I did no maintenace at all on the chain, other than smearing them with bearing grease every so often.
When I bought the wee, I religiously applied a high quality chain lube every week, and the chain was shot after 10,000 kms. I think I got a bum chain from the factory.
My new chain (I changed the sprockets too) is 14,000 kms old and still perfect.
I don't know if I shoud credit the chain's quality ot the scottoiler, but I definitely like the peace of mind afforded by the scottoiler; I can just ride and forget about the thing, other than filling the reservoir with ATF every 15,000kms or so.