First let me say I am in total agreement with Kurt. If it was re-blued in a hot salts bath there is a very good chance it will eventually have a loose rib problem.
As to the lever, the Flues has an adjustable underbolt. It is quite possible by an adjustment of this bolt the lever could be brought back to center. There is however one other thing to consider here. The Flues is also top bolted. Moving the bolt back to or toward center will lessen the bearing of the top bolt on the rib extension. Personally on a Flues I would back off the underbolt & see if just the top bolt will snug up the bbls without the lever running out of travel. At this point then readjust the underbolt to make contact, trying as much as possible to get an equal bearing of "Both Bolts" & let the lever fall where it will. Position of the lever is cosmetic only, secure bolting is what's important. The Flues has a reputation for Frame Cracking, in my opinion losing the top bolt bearing is not desirable. The bolts are now worn in smooth & if kept clean & lubed they will likely go for years with no more appreciable wear if given moderate use with appropriate use. The Flues can make a very nice upland gun, I would not recommend one for constant use for any clay's routine.
