You need a loose arm on your strokes to handle heavier racquets. Basically your right arm needs to come along for the ride. Most rec players use their arms when they hit, and that is why the weight bugs them. Or they just prefer lighter sticks. I like the Blade, it's only 328 or so but the SW is pretty nice.
I also have a 200 and when I switch to it, it's not a huge adjustment. I just like the racquet head speed I can get with the Blade.