I have a Brittanic and have had it since 2000..... still going strong, but I must admit to just buting a new O3 RI.2.1 compressed... £500 cheaper than the DUI, and build like a shit house! Pretty much the main stay of deep British wreck diving... Good al, hard waring dogs bolloxs suff.
www.o3.co.uk
DS
PS Compressed let you drop weight