I think you mean “If your really good, don’t use the clutch coming down the gears” Alix. Which is very true, from the limited experience I have. I drove an Eaton Twin Splitter box, in an ERF EC14 for two n a half years. When I got back into a ZF boxed wagon I had to keep reminding myself to use the clutch, splits won’t change without it
Your crashing box just sounds groan like a box suffering from old age and abuse Lib’.