Vitus/Alan bonded aluminium frames.

[thinpin]

Cycle_chic's thread reminded me of a question I wanted to pop a while back. I have a hankering to try a Vitus or Alan lugged aluminium bike. I remember seeing somewhere the bonding on some of these can be an issue now. I think Alan frames were screw and glue. Anyone any experience of anecdotes to tell regarding current use of these frames?