Great report! Glad things are going well. Now, you just need to get that pool warmed up so you can go swimming!

You might want to bump the alk up just a little with some baking soda. That will help your pH be a little more stable.

Another comment --- did you backwash only to lower the water level in the pool? If so, just an FYI. You could have just dumped some water to waste instead of backwashing it out. Dumping to waste bypasses the filter and thus won't throw out any undissolved CYA. (Although, it was probably all dissolved after 5 days anyways.) Just wanted to mention that option for future reference and also for the benefit of anybody else who might be reading this thread.