there is no correct order of suits for proofing a deck, just that they be in suits, most casinos will use alternating colour, which makes decks easily viewed by players, LtoR diamonds, clubs, hearts, spades or clubs, diamonds, spades, hearts. Or alternatively you can use the correct ranking of suits to proof your decks which I prefer of LtoR (and Low to High) Clubs, Diamonds, Hearts, Spades.
With regard to the KEM's ditch them, they are a pain in the arse and exuberantly expensive, Advertised as the best cards in the world, perhaps, but I think Furnier are a better brand though, change to Furnier, Aristo, Copag or Modiano, they all retain their shape nicely, although I have always noted the Bridge size of KEM issued for the WSOP seem to retain their shape fine, whilst the poker size issued for the WSOPE warp to a ridiculous extent. Or alternatively use cheap plastic cards that can be destroyed when damaged or mafked (especially if you are in a self deal pub envirnoment, they can be picked up from a company such as drinkstuff.com for around £1.50 a deck.)
Stu