Is the Boeshield supposed to go on the seatpost or on the QR cams?! I've always kept my seatpost and seat tube "dry" (other than the occasional cleaning -- not lubricating -- with WD-40), and occasionally lubricated the plastic QR cams when I used the stock QR levers. I thought the problem was to make the force you put into the QR levers translate directly into clamping force against the seatpost, rather than into overcoming internal friction in the QR. I suppose there might be some friction between the seat tube and the post to overcome too, but for that it seems like it'd be adequate to grease only a small part of the inside of the seat tube in the vicinity of the stress cutouts.

For the past year-ish I've switched to enclosed-cam skewers from Kalloy, available from any place that uses the QBP catalog: http://harriscyclery.net/product/kal...t5208-qc49.htm. I have three, two for the seatpost clamps and one for the steering riser. Get the 60mm long version for the bottom seatpost clamp if you try to fit rack stays in there too.

They're a bit heavy, but c'mon. Bike Friday has some too, but they might be the same and it seems doubtful that they'd be any lighter: https://www.bikefriday.com/thestore/...roducts_id=710

Anyway, they're a vast improvement. I've always been able to open them with only my fingers and a minimum of grimacing/swearing, they close fairly easily (I set them to start to engage about 1/4 of the way through their 180-degree arc, if that makes sense), and that's with no maintenance or lubrication. The stock ones were practically unusable after about a year.

It's possible that better-quality open-cam QRs might work fairly well too, if the cams are made of harder stuff and don't turn into a chewed-up mess in a matter of months, and if you keep them clean of grit.