Hi Guy
I'd be interested. Is the MH list weight (680g) accurate? Also, what is the pack size when compressed?
I have a MH Banshee SL (its only Reg but fine for me at just over 6ft). Its totally overkill for me so barely gets used. I've had it about 3 years and think its had ~ 5 days each year so VGC. I have used it for a couple of alpine bivi's when it has been superb. Its a top end 4 season alpine bag - 800 fill, Conduit SL shell etc. Rated -11°C/-30°C I think.
http://www.mountainhardwear.com/Banshee%E2%84%A2-SL-0-(Regular)/OU8416_R,default,pd.html
Its obviously worth more than the phantom (cheapest I just found on Google was £450 so I'd value it at ~£300-350). Let me if your interested and we can sort out a PX deal?
Tom
tomchestersATgmailDOTcom