Both Mark V and V* are seen with both types of track. As a general rule Mark IVs weren't fitted with wide tracks although I do know of one instance when wide tracks were fitted to one or two Mark IVs for tests at Central Workshops (every rule needs an exception).
Gwyn
-- Edited by Gwyn Evans on Friday 19th of December 2014 09:05:04 PM
I was re-reading the old Profile publication on the Medium tanks, and it says the Medium A used tracks with 20.5 in wide plates as well. Is that correct?