Interesting thread to read from the beginning (I missed this originally I think). How much do you think sleeving reduces the value of a "best" gun assuming the work has been done well? Obviously a considerable amount - but any guesses on percent? For example - would this nice little Boss 20 bore with sleeved barrels really be worth $65K - I know small gauge O/U's are rare - but I have a hard time thinking I'd spend this kind of money on a sleeved gun.

http://www.gunsinternational.com/Boss-Co-20g-Over-and-Under.cfm?gun_id=100372825