Talk:RR3 Wiki:Upgrade Strategy Limited Time Series/@comment-80.114.141.187-20180524190953/@comment-28169398-20180524194200

You cannot always tell from the PR increases shown on the Wiki. Sometimes it is possible that the upgrades here add up to the correct PR, but when you apply them in game, they are 0.1 PR below what you need.

The only way to know for sure is to test in game. Either that upgrade tree wasn't tested, or it was and gave 89.1, not enough to complete the LTS.