I don't know if its like a relevant thread, but I heard that there is a problem with like remembering what you completed for 100% so I did a research to find a software like it does on GTA SA, because I suck at programming. and I found this website: http://grandtheftauto.net/gta5/100-completion-checklist its a 100% completition checklist thing that any of you 100% runners can use, even though this thread might be the most irrelevant thread ever, I thought this would help.

The one for GTA SA is so good because it's automatic (as far as I know). The issue with what you have linked here is that speed runners don't have time to tab-out and click things. It would be nice to have an automatic one, but I don't think that exists.