FINALLY! AirDrop with my 2011 to my iPhone 6 Plus!, and continuity!
--EDIT
Oh I waited till 10.11.6 because I figured this would be the last update for El Cap.
Plus I am not moving to Sierra till March 2017, 10.12.3-ish
--EDIT 2
One day later update to Little Snitch breaks it
--EDIT 3
Final roundup for those interested:
Waited for 10.11.6, backed up using CCC
Installed CAT, viola worked.
Next day Little Snitch asked for updating
Updated LS and the result: WiFi Hardware not installed error.
Disabled SIP (to re-install CAT) and WiFi Hardware went away, wifi there.
Went to CAT it said everything was fine.
I didn't want run without SIP.
So I uninstalled CAT, reboot
Reinstalled CAT (with new LS there), didn't show Cont. in Sys->General
I restored from CCC backup, went to Starbucks.
Came home, All is good.
Re-installed Little Snitch Update since CCC overwrote with old.
WiFi hardware is intact after LS.
Now I could try and install CAT again, but... it's not worth it at this point
I really want AirDrop, because taking a picture on an iPhone and waiting
for iCloud photos to update is a HORRIBLE WAIT.
But when I get my new MacBook Pro (delayed/Late 2016), my MBP17-2011
will be put in the Projector room for storage/backup/role-playing fun...
and the nMBPr will have AirDrop with iPhones...