I'm using both 18oz and 27oz in King Iris stainless cages, bottles don't rattle at all after you squeeze cages just a tad. The sports cap works OK, but the plastic is very hard and the top don't pop as easy as a plastic bottle. I find it difficult to bite and yank while I'm riding, the cap stays stuck, so I just leave the top popped, there's no leakage or spill. The cap does make a weird whistling noise when you drink.

Didn't think of de-logoing w/acetone, great tip!

KK's Commuter Orange matches Waterford Monarch Orange (close to Molteni Orange) pretty well, but I think the color might be discontinued. Not a problem if you don't have an orange bike and/or aren't into the whole color matching thing.