FYI: I discovered another cap on a 60ml bottle of Montblanc ink that was badly cracked, vertically across the threads about 3/4 of the depth of the cap in four places. One crack appears in the photo, below. The cracks are long enough to preclude an airtight seal. I use this color ink regularly (Toffee), so the cap on this bottle was twisted more often than other MB bottle caps, but I don't tighten the cap on Toffee more than I do on other colors. Furthermore, with only 10ml of ink used, that 60ml bottle and cap wasn't in use all that long. (I decanted the ink into an MB 50ml bottle and the ink barely fit.)

This is the second such failure of these new-style caps that I've experienced. These caps are on 60ml and 30ml bottles, and have a chrome-color ring around the outer edge of the top of the cap.

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