Your plan sounds OK (FC=9; CYA=90), but yes, I'd recommend keeping the chlorine high for several days after all trace of algae is gone.

Also, I'm working on a project that will allow all subscribers to log their pool readings via a smart phone or net device (it's a page, not an app), AND have their dosing info auto calculated for THEIR pool. I'm just starting on what you might call 'beta' testing today. If you are interested, email me at poolforum@gmail.com You don't have to have a smart device to participate, however.