With the exception of the 1st SS Pansy division (though I retained the Pz IV J from KGP), I kept all my counters.
However I must explain my collection. I bought ASL right from the start and when AH was sliding down the drain I bought multiple duplicates from retail stores, eg 4 x BV v1, WoA, 3 x CdG, 2 x Y v1, CoB, GH, DB, AoO, HL, TLH, Part, Para. This was because I found the 6 vehicle, 4 gun maximum too limiting for my DYO stuff as well as a certain "AH dying, no more ASL, panic, Aghhh, buy, buy" moment. So currently I have, for the most part, enough 5/8" counters and a surplus of 1/2" for my needs. At some stage I will go through my really worn 1/2" and replace them with the unpunched 1/2" that have accumulated over the years.
But otherwise I ignore minor colour variations as that does not bother me too much, misaligned cutting is another matter. The German KGP stuff annoyed me as not only were they different but were so far from the usual German powder blue to really aggravate me. Wear over the years has made more a difference than initial printing. I keep my counters stacked in their compartments in alphabetic order as it enables me to know when, say, MMC "I" is missing and as a result in many cases MMC "A" is almost white from use while MMC "Z" is almost pristine from within the same purchased batch of counters.