Hi gary nash here,i am Rubi bias but you cant beat a cpc2 blade for fine cuts and longevity, A very good blade and when the water supply is kept good you wont get any chips on polished porc.
Had the macrist blade Ck850 was dissapointed with it and was chipping alot of tiles been using the dna blade worth the extra money in my opinion goes through hard porcelain with ease.