So, in February I managed to snag a set of KanasPro for a great price. In April, I bought a set of ZS10 PRO. After following these threads for a few months, I learned that tips can make a major difference in how the sound comes across with all iems. Earlier this month, I pulled the plug on 2 pairs of medium, and one set of large Spinfit C145. I also bought 2- 6 packs of New Bee tips, with 3 sets of silicone and 3 sets of foams. I already has a 6 pack of New Bee foams that I bought a couple of months ago for my KanasPro, and was enjoying them immensely with both the KPE and the ZS10 Pro. But based on all I have been reading, the Spinfits seemed like something I needed to try on both my sets. I haven't tried them yet on the KPE, but based on my experience with my ZS10 Pro, they aren't cutting it for me. I likes my bass, and the Spinfits don't give me that enough. Also, there's a big lack of harmonic and tonal warmth, compared to the New Bee foams. Not a big fan of the Spinfits, so far. Yeah, they have detail, but there's a lack of natural sounding warmth and body to pretty much everything from bass to treble. The bass is the biggest letdown. The New Bee foams give me much better bass extension without sacrificing the mids and highs. They are also much more comfortable. I can listen to my iems for several hours on end with these foamies. I've tried Complys also, and I don't like them. They feel rough and uncomfortable after a while, but the Spinfits were much worse. I barely made it thru a half hour and they became itchy and I wanted to take them out. The New Bee silicones were much the same. So far, as far as seal, comfort, and listenability is concerned...the New Bee foams are still my favorite.