Yeah i've used it from time to time jj, i've used it since the days of it being called G-plat, back then when i tried it the first few time's i did taste something different to A1 but it's the same when i first tried n80 or Ti after 
vaping A1 for so long, you eventually get used to it, same can be said for the wicks we use jj even cotton at first has a funny taste for a while.
I'm not sure about it changing after a dry burn, only the colour go's blue then after a few glow's it go's to a dull colour.
One strand SS317 & one n80 inside a shell of 32g n80, just thought i'd give it a whirl as i've tried n80 & A1 together like this before and when it heats up it has i staged process where one will heat up before the other. i havent observed the n80's & SS317's heating sequence but at a guess not much in it.