Nice pumps, guys. I've never owned a Silca frame pump but I have 4 or 5 Zefal HPs. I bought the first for my UO-8 decades ago when the original pump broke. (I, um, stepped on it. It wasn't that great a pump anyway.) They are all collecting dust now. I've tried lubing them, swapping head parts around, everything else I can think of, but they just don't move air like when the first was new. A new Topeak Masterblaster Road is so efficient and looks good on most bikes.