I like the way ReiNand keeps supporting emuNand, I don't want to jump into A9lh yet... And, I think that is good we have these options between Emu+MenuHax or A9lh, it give us a choice at least. Its seems that all others CFW are going to drop emuNand in some point and its really annoying being pushed at the A9lh.
So, ReiNand is a really good work, I think that
@Reisyukaku should continue with his vision.
By the way, I'm using a 64gb Class 10 SDXC memory card and the sysnand and emunand boot time is pretty the same for me too.