hahah... thanks! a few millimeters actually makes a big difference for some people. like anything 14-15mm deep, I can't stand to wear for more than 30min. at 17-18mm, they are more comfortable. at 20mm+, i can wear em all day.
what I noticed via the direct comparison wear test was the the k550 cups seemed deeper with a wider diameter. this kind of change can be model-specific/headband clampingness-dependent as well I guess, so obviously i defer to a objective ruler test. just wanted to throw out my subjective comfort impressions after finally trying em.
I would like to go back & demo more with my own source files + dac sometime, but i unexpectedly ended up near best buy today doing errands, so i cldn't resist.