In my testing I've mostly found that the only tips that kind of lean out the frequency response are the stock biflanges (meelec balanced). Sony new hybrids are bass heavy and detailed but a bit sibilant. Auvios provide a strong bass but are sibilant as well. But I'll try tip rolling again and listen more to the mids! Thanks
I tried comply tsx-500 and s-500, they are both nearly the same in sound, and they are better then the normal small silicone tip that comes with the Asg2.
They give more bass and not too sibilant to my ears.
but the ergonomics of the iem makes the tsx-500 harder to wear, but the s-500 is brilliant in sound and comfortable at 10$.
and the change they did compared to the stock is amazing.