Both are medium size. Right side are the "ortofon" you get from Amazon. These are generic Sennheiser tips, although the buid quality is pretty good.
On some particular IEMs I have, the senn tips sounds better. But in most cases the Ortofons win, and these are more comfortable.
Yes, I found a couple of sets, the clear Ortofon tips as above, from my big bag of tips. I should take a picture of that, you guys would get a chuckle.
Anyway have them both on my ASG-2 and my SD3, so far they sound good and are comfortable. Thanks.