After spending months dialing in what blades work best for me I took the plunge today and bought my first ever 100pk of DE blades: Feather. Through a reputable amazon dealer I got 100 feathers (x10 10blade packs in a sleeve) for about $26. I usually shop maggard or west coast shaving because they both are great companies to work with but this deal was too good to pass up.
I still love, use, and will rotate the gillette silver blues, 7oc blacks, and personna lab blues in my 37c because they all work great even though they give slightly different shaves but the feathers just really seem to be where it's at for me. It took some time to grow on me but I found that everytime I used a non-feather blade I kept wishing it was a fresh feather like I used the day before! Also, while the 37c is my daily shaver, I also own a dorco prime TTO safety razor (solid performer regardless of low price and being considered a "noob" razor) and a standard razors aircraft aluminum safety razor that I rotate in occasionally and both of those crave feathers above all else.