I used to use a fusion and it gave me hell like nothing else. I since downgraded to a custom 3 plus sensitive and I haven't really had a problem since. I still get a way closer shave than I ever did with an electric and I don't really have any problems anymore. The blades on the custom 3 are a lot farther spaced, I think that's what helps.

I also use nivea's for men sensitive skin gel, I doubt it actually makes a lot of difference but it's worth trying. It certainly doesn't dry out my skin at the very least.