I've fitted every car I've owned since the 80.s with 100w bulbs and that's many.
I'm still running them and my lads mg will be getting them so...
My info is first hand.
I have had ne issues ever from running them,the wiring fuse and switches are more then good enough.
I did 100.000 miles in a400 bubble with them fitted.
As for the blue tints,I've tried and moved on quickly.
Clear bulbs are best and give much more light and that's what we're after right?
The blue is like sticking sunglasses on them.
When buying your bulbs I tend to buy 2 sets incase one goes.that way it's a perfect match and cheap although I can't remember any going.