Hey, cliffstone,
I realize you didn't ask, but if you had visible algae and elevated the FC just last night, there is virtually no way your FC will test the same this AM as it did last night.
Shocking is a process.....not a one-time dosage. Take a look at "How to Shock your Pool" and "How to do the overnight FC loss Test" both in Pool School. It'll help you clear up your algae permanently.
Personally, I would continue to swim in a pool that looked decent but may still have a little algae lurking as long as I had some chlorine in the pool so enjoy your weekend but I think you'll need to replenish the FC.
