i'm sure steve will let us know but i thought the earlier heavy track was the strongest especially on stoney ground, i believe the manganese tracks were found to be not up to the job when the going got tough.
one strange thing about the track was the absence of a way to split it, as the track was one continuous loop with all the track pins fasten in situ with a stainless steel tab welded over the end of the pin so the only way to break the track would be to chisel off the welded tab, i can't understand why they never put removeable pins in every few links or so but that's the churchill for you, nobody could say it was a boring tank to study. bizzare, weird, eccentric, over complicated and over engineered but definately not boring :nut:
eddy