Where's Donnachaidh when you need him ..................
I've never seen the difference between Plate and Heavy as a modelling issue. A lot of armies have heavy armour on their profile, but 'plate' is an Empire special rule (like ASF

).
Until this thread I don't think I've even considered it before.
However I agree our pistoliers look 'over protected' for 'light' armour.
As a layman on the subject I guess I assumed plate was a series of overlaid plates - much like the thigh armour (greaves or tassets?) on our Light Armoured Swordsmen

and the one piece breastplates were
not plate.
The appropriate level of armour seems to be a rather random concept right across the GW spectrum.
As to WYSIWYG I attempt to be an exponent as much as possible - and endeavour to add armour where militia parts are used for state troops, and make sure weapons are right - I even like my champions to carry the right weapon for their unit.
I also like to add the accessories - quivers for archers and crossbowmen, and sometimes scabbards for swordsmen, and handweapons for spearmen or halberdiers.
It all adds to the character of your units ...............
