With the array of custom earpad options on the market and/or interchangability between earpads....Dennon headphones for example fit Beyerdyamic, HiFiMan, JMoney, Lawton Angled, FA-003 pads etc....why are Sennheisers left in the lurch so to speak? Yes, ear cup shape is oblong on the popular over-ear Senn's, perhaps making them less amenable for interchangable earpads...but owners with more teacup shaped ears complain about ear contact with drivers on HD 600/650 and HD5xx headphones with seemingly no options to avert this common issue. Seems to me there would be market for them. Sennheiser over-ear headphones are popular in spite of this deficit. For those with larger or more protrusive ears, it may make more sense to gravitate toward a Denon or HiFiMan headphone because both are able to be fitted with a different or thicker pad shape based upon one's ear shape. Thoughts?