hey man. I actually experience that SAME exact thing whenever i change new razors. I am used to it now and i've accepted the IDEA that the blade is too sharp on first use, and after that first use...the razor burn and redness goes away after the very first shave.
So same example as you. I have the Fusion Power Glide , and whenever I change the blade, i get burn and some blood, but i always chalked it up to the blade being sharp because even when i use a mach 3 with a new blade, or even a DE Safety razor with a new blade, it's always sharp as hell and cuts me up the first time, so i just go a little easier the very first time i use a blade.
Did this "just" start to happen to you ? or are you noticing it's always with a new blade ?