First impressions, the ear tips included did not fit my ears comfortably. So I took out my cheap $15 Sony EX 50 earbuds and exchanged the tips. Now they fit perfectly and fit is exactly like it was on the EX50s.
If your ears fit these earbuds perfectly, using the tips from these will provide the exact same fit.
Right now sound-wise after 5 minutes, they sound very bassy. Tight and very punchy bass. The highs are a bit etched and I have it rolled off on my Cowon. EQing is a usual thing for me to do. I EQed the MTPGs too, but the MTPGs definitely have smoother treble (or upper mids?) compared to these un-burned right now. But right now, I'm liking these more than the MTPGs since they just fit a whole freaking lot better. I suspect that I can go jogging with them and not worry about them falling out which is definitely not something I would say about the MTPGs. No matter which tips I used with the MTPGs, I never got a secure fit, but the MTPGs with supertips probably provide much better isolation than the CKM99.
Edited by wind016 - 5/4/11 at 3:33pm