I have 2 s9 Antminers on Solo mining UNIT.

PP7o4uXSCp9CaeNUkvhZzHVZfuehXPPfHi.rig1
and
PP7o4uXSCp9CaeNUkvhZzHVZfuehXPPfHi.rig2

They both connect and hash just fine, but the difficulty is not at the 8k I set them up for.
One has been going for 40 minutes at 73.3k and the other 43 minutes at 100k.

I'm sure the starting difficulty is high, but when can I expect to see these adjusted to
2048? 
Very unlikely that either miner will be finding a block right now.

Any help would really be appreciated, as I have experience losing a month of hashpower on a sham pool,
so just want to make sure all is correct.  Thanks