Your blog won't let me comment. I said: Why not use Firestorm all the time? The SL viewer tanked years ago.. And the building tools in Firestorm are much better.
I do use the IW Beta viewer because it's a good viewer with all possible tools and features included plus some that I can't get elsewhere. If it didn't, I would use another viewer.
nods What's the consensus on Firestorm as far as lagging in key features behind the SL viewer? That's my biggest concern. I use the IW viewer for that reason too.