So here's my update:
I added two quarts of muriatic acid last night, filter is on 24/7. As of this morning the pool went from crystal clear to now cloudy white (can't see the bottom). And my current readings are:

FAC: 0
TAC: 0
pH: 7.2
Alk: 110

In hind-sight prior after a full 24 hrs. of my initial 5 lbs. of the ascorbic acid, the over all stain was reduced by about 50%...meaning not as dark. I'm wondering if I should have just did another ascorbic acid treatment?