On my Angie I, they are pretty loose, but don't get stuck in your ear when you remove the IEM - so it's not a deal breaker - for Angie II i'm guessing the nozzle is the same thickness but I'm not positive. You also miss out on the "dots" as you end up sliding it so far down the nozzle it ends up sitting flush with the tip. If you do this, they won't fall off. But for some reason, the dots just make a nice seal unlike so many others I've tried. I found their sizing to be refreshing as you have 5 options. I use medium spinfits, and the medium spiral dots worked for me perfectly (as a comparison). They may be a tad smaller than your average "medium" tip, this is true - but I think spinfits are also smaller than normal sizing as well.
hope this helps.
with that said, have you tried the comply foams? I find their sound to be much more "even" across the pass band, taming treble spikes. Yes, the highs are attenuated a bit, but I find the linearity worth it.