Tyll, you have a reputation which most long time headphone aficionados know of and respect. IMHO you have to honor it being honest and giving your opinion. You're not a sell out nor a shill, so probably the way to go is saying what you think. OTOH it's a well known fact that Stereophile, Innerfidelity editors try not to piss off large (or not that large but publicity space paying) brands with bad reviews, so they just don't write them. Maybe just acknowledging you've used the cans, you've measured them and that you are refusing to write the full review, is enough for those in the knowledge.