I've had the reversed and modded 414s on my MS-1 for about a year and a half now, and am really quite used to and happy with them.
I have bowls on my MS2i and after about ten months they've become rather comfortable indeed! When the 414s eventually fail on the MS-1, I plan on replacing them with bowls as well.
I tried the bowls on my MS-1 some time ago and although they sounded a bit better to my ears, they weren't quite as comfortable as the 414s. A few days later I realized I hadn't bothered to re-bend the headband for a better fit and a more accurate test.