Salt I got going on day 3 after opening. I wasn't in a rush with cold water but it surprisingly warmed up enough that the cell started working so then I rushed out to get bags of salt and it took 2 days to dial in. The SWG has been working since.
For CYA, I opened with 50 which is plenty for us up north this time of year. I will only raise the CYA when the UV loss starts to burn more FC. It will probably be late May or early June. If I raise it for no reason, and have an algae outbreak, my SLAM target goes up 4 FC for every 10 CYA, so I don't want to raise it until I need it.
Equipment failures happen. Life gets in the way sometimes too. Even being the master of my own pool, I may find myself behind the algae 8 ball beyond my control. So I always respect the risks of raising the CYA with no immediate need.
And I won't raise the CYA to SWG level without first passing an OCLT. If there is any question, such as a borderline pass, I'll want 2 OCLTs to set my mind at ease