slipperfan- the roots all look healthy, and yes the new growth is sitting in the mix.
sanderianum- I grow this paph. in a mix of chc, dolomite, fine charcoal, and I top dress it with a layer spag-moss. I also water the crap out of it once every 5-7 days, its growing in a 4" aircone pot that I pooked some holes in the side's to allow more air flow throught pot to counter my excessive watering. Also the new growth is almost as big as the previous, I would say it's about centameter smaller in leaf span, and width. I just unpotted it recently, and I didn't have any dead roots. I would just like see it grow to point where its almost pot bound, and not depending on 6 roots!
nyeric- As far as fertilizer go's I am lacking a calcuim supplament, Which I plan to remedy soon. By the way any suggestion for a calcium supplment?