Ha! Even if I buy both, I will keep both. I'm sure (or at least, hoping), that I'm not the only one that has one for the day, one for the night (with a shower in between).
I do recommend the Opus 1870 very impressive tired it at HB the other day and it motivated me to get some samples from Menbiz, ordered them yesterday arrived today before 8am, wearing the BB its a very elegant scent. Not sure if its me, learning towards buying Opus 1870 if I can buy it at a reasonable price. Menbiz $169 same as HB for 100ml have looked at getting it direct from UK but they want 60 quid shipping, forget that.
They also sent a strip with Endymion (sealed in plastic) and to be honest not impressed there is something in the background that bring back bad memories of the middle 90's and working with waiters who would douse themselves in that whole Eternity, Issey Miyake, Tommy Hilfiger sameness colonge. (shudder)
Opus 1870 and BB are very nice, too - just not for me. Scents are unquestioningly personal and extremely subjective, best way to find out is to try it on for yourself!
Geoffrey, the plastic sealed strip might have had something to do with how the scent smelled. The chap at Penhaligon's in Singapore told me that a good way to test scents is to put them at night, fresh out of the shower, right before you sleep. Apparently, a good way to get a sense (scents) of the top note (right before you sleep) and a good gauge of the base note when you wake up in the morning (after your body heat interacts with the scent).
Strawberrynet has them for $118, and free shipping: http://au.strawberrynet.com/mens-fragrances/penhaligon-s/