Thanks BoycieDon't underestimate the progress you're making Ed. I've not used an Envoy but I've heard it is the equivalent of an ambassador on #3 which makes it quite assertive. Master the Envoy and you'll easily use any other DE that comes your way. The GSB is one of those blades that gets better with each shave as well.
They really do seem to be very nice blades.
I like the Personna Platinums ok enough, but sometimes I find them a little weak.
The silver blues seemed to be stronger but without any added harshness. Thankfully I have a hundred of them!