Over the last few years I've replaced the sac on some Esterbrooks, but not much else. I promised myself that in retirement I would learn toat least work my way up to a vacumatic and hopefully a plunger fill. Well, I'm not fully retired, but do have more time on my hands, so I thought I'd take the plunge with a couple of Touchdowns. When I received my supplies from Pendomonium, they included a reprint from Frank Dubeil's book on pen repair. He advises attaching the section and barrel with a bit of rubber cement. Sounds like that might be easier to reverse if needed than shellac. Think I'll give it a try. Anyone else ever use this to secure the section onto the barrel?