Also on the 9", from what little I know, there are some strgenth limitatations there going that large. Then bring high pinion into the game and only really one option now.
This is still an interesting option when you don't want to run full width. You could still start with a 100 donor 14 bolt, then put the guts into this, shorter shafts, brakes... Have not done all the math, but is still compelling to me. So is the spider 9 and true hi9 as well. If this or the 60 dropout version come to the table that just gives us more options.