I have a chanter from Tim Britton and it is made in a similar design. For his it’s designed to use 3/16” (0.1875”) brass tube for the reed staple which is easier to find in the US than 5mm (0.197”) which seems to be the standard.
I’ve seen several of Kirk’s chanters over the years and all the brass tube tuning slides were just pushed in and held in place with a little waxed thread. It is possible that a previous owner used some glue. If cyanoacrylate was used some acetone should help loosen it. Best of luck!
I can’t argue with your good results. But I would point out that the chanter was designed for a reed with 3/16” dia tubing staple. The tube in the chanter was a clue to the maker’s intention. Pull the tube & a bit of knowledge is lost about the chanter & it’s design. This is particularly so if the reed seat is reamed out to be conical.
Messing around with chanters in this or more drastic ways makes me nervous. If the practical result of modification is truly good, ok; but too often I’ve seen modifications that were unskilled & destructive.
The tube was just pressed in with a minimal wrapping of thin thread, so it’s a simple matter to put it back in. The chanter did come with two reeds made to fit into that tube but both were sh!te. I didn’t ream out the reed seat, that would be scary.
Ideally I’d like to find a reedmaker who has experience reeding Lynch chanters.
Or, failing that, a reedmaker to whom I can send the chanter and reeds who can use those staples as a basis for new reeds.