Hello everyone! Well I am still a newbie to the world of the DE razor. I am shaving with a Merkur 38C and have purchased the extended razor sampler from West Coast Shaving as my first razor purchase. I started with the Merkur blade pack and was wondering how long does it take to get enough understanding of how a blade type performs? Also, by what categories does one judge a blade, I've heard smoothness and sharpness? I am starting a blade journal for this sampler pack so hopefully in about 6 months to a year I am able to make a judgement on which couple or few blade types to buy.