Klipsch X7i In-Ear Headphones

Been using these a lot. Great! Well above mid-level quality and definitely far above ear buds. Good isolation with flanges, but I need to push my left ear's one back in more often than I'd like. As for iOS vs Android - an iOS IEM works fine on Androids except that the volume up/down don't. Ok. I'm iOS, but I really prefer having my audio source control the volume (iOS) vs having a pot in the cable (Android). Many places (Amazon) have $2-4 cables with mic, switch, and volume pot / slider if needed.

So far, for me, the 3 flange works best but still no where near 29dB isolation I'd guess. Great headphones though!

Which of the included eartips (oval, or 3 flange) gives better isolation? Sound quality? Or is it Comply for both (if so, which size since the X7i isn't in Comply's online chooser)?