Never heard that one before - and I have to disagree with you.It's a bit of an irony that a large proportion of people in the UK who use the larger radius points, tend to use locos without skates.
It may have something to do with longer wheelbases / more wheels for current collection
OK, probably another wrong theory of mine - our own bubble is sometimes too small
So I may be skating on thin ice here, but those skates are on the locomotives for a reason. That reason is to pick up power on possibly less than perfectly clean track.OK, probably another wrong theory of mine - our own bubble is sometimes too small
Your track is LGB. We did have a few problems with the LGB track cleaner grinding frogs on Aristo Switches but not LGB if the Track Cleaner Wheels were in good condition, leave them on too long and the flanges tend to wear to a shallower depth thus possibly causing issues. As for deepening the frog flanges, there may be a bit if ‘meat’ to loose but not much before weakening the switch. You could use a file end on that is slightly smaller than the gap if you must.
I do have a turnout (R3)) the will often cause a derailment with one particular, loco in one direction, the issue is a combination of things (in my case) wear in the frog, poor check rail, narrow flange on the wheel, not enough weight on the pony. I have done what I can and it only rarely now it happens, and that is caused by subsidence in the ballast.
The check rails look a bit short and ideally should be longer than the crossing/ frog
