My clip is ever so slightly bent away from the body so it doesn't make contact when spinning the backend.
Whilst this is the case with all new hoppers, it is pretty easy to bend it. My last body got a good ring scratched around it from the few times the clip was in contact with it.
My new body, which has seen 2 weeks of use today, already has some slight scuffs even though I have been cautious to avoid it. If you put any pressure on the clip when unscrewing the back-end, it will push it into the body and may scratch it.
I have thought about putting a bit of foam, or similar, under the clip to avoid the possibility altogether, I may do this when I receive my coloured unit.
On the bare Ti scratches blend in fairly well in normal light.
Over all, I am happy with the clip. I clip it onto a belt loop occasionally to avoid the MP coming in contact with pocket lint.
Mainly though, I think it plays a big role in the stealth aspect. It kind of dulls down an otherwise fancy looking pen. I think if the clip was more complex or branded with a logo or whatever, it would be much more enticing to pick up. As it is, it just looks like a pen - it's not quite interesting enough to bother picking up. I have put this to the test too, and even with a bong nearby and the silicone (dirty too) MP on it, it hid in plain sight unsuspected.
Further tid-bit, if you ask for a fully replaced hopper, even with a deposit paid out to the value of a new hopper, you will get a response like this:
Unfortunately, we do not offer this option. We need to have your Grasshopper here to replace the necessary parts and ensure your whole Hopper is fully operational. It is not our policy to replace a whole device, but rather the faulty parts.