I started in 7mm as a lockdown hobby last year and I've now built 3 locos and several wagons and vans. On my 3rd loco (a Judith Edge Hunslet), I sprung the middle axle with wire as Ken does on his builds and the pickup is great.
On Jim's Connoisseur kits, like the J36, the centre axle is raised by about .25mm. The centre boss bearing hole in the coupling rod is offset by a similar amount so that they stay in a straight line (at least it was on J71 which I built rigid). If you spring the centre axle, what do you do with the coupling rods? Do you just leave them alone, because any droop in the middle won't be noticed, or do you somehow file the hole so that it is centred in the boss? Not seen this mentioned anywhere. I've got a J79 to build next and would like to spring it.
Cliff
