I had set aside my last two Crystals and four Feathers because they were the two blades I did not like in my original sample pack. Both of these blades did not work for me in any of my razors. Couple days ago I decided I was going to use them so I did not have go see them any longer. I placed one in my EJ DE89. Shave was ok but they were not as smooth as BICs in this razor. My next shave I was about to toss the blade when I looked over and saw my Old Type with a ball end tech handle. I decided to give it a go and loaded the Crystal in my old type loaded my Duke 2 2 band with some RR MdB another one of my neglected products at the moment. When I was done some after two passes and some touch up and finished up with Aqua Velva and wow. Can you say BBS? So for my next shave I loaded the last Crystal and again BBS with my old type. Now I need to order some Crystals. I had almost given up on my old type as well because my other blades were not smooth in this razor. I will try the Feathers in the old type next.