My first post on the forums but I thought I'd hop on this one. I had a Small Huntsman 246 with a crack through all the liners along the middle pin, which made the corkscrew flop around. They replaced the liners, left all the tools as requested and put the original scales on. Worked beautifully but the liners were about .5mm larger than the originals. Better than a completely broken knife, but a glaring issue. That said I have sent them many for repairs and they never disappointed, they've just all been recent models.
They don't keep a supply of vintage parts, so don't count on the 5 twist coming back as anything but a brand new 4 twist.