I have to agree with comments that suggest using one blade for a bit and really learning how that particular blade shaves before moving onto another. Yes it does take more time to go through different blades but in my experience you will learn what blades are great for you or not so great. Astra Superior Platinum is my all time favorite, it wasn't on your list but thats my vote
all I will say is that my experience with shark and dorco was not good.I just tried a polsilver and it was a step up from my usual derby green blades.Very smooth and low irritation.I like.
Well, it was a mixed bag. Took down my thick beard like a champ and no nicks/cuts; however, I did get some bumps. Probably technique related though. Since I have switched from my 34c to a Gillette Fat Handle Tech. I have been getting much better shaves with that razor; so, I may try a Feather in this one and hope for better results.
My favorite is the Astra SP, but a couple of weeks ago I tried a Voskhod in my slant razor. It started out too sharp, but it has gotten better after a few shaves. My least favorite was a Wilkinson Sword blade.
I love MGS!!! The last one kinda got me mad tho without David Hayter... I think that’s how he spells it (prob not) but anyway BigBoss is the man!!!