On the one hand, I put so much energy in to fussing over the temperatures for each stage that having to choose between just 5 choices might make life easier. On the other hand, I am a control freak and not knowing the exact temp would be a personal challenge.
I echo the response above about mixing the glasses being your likely problem. Even within a brand the colors can be different. Unless its all from the same sheet you have to assume it won’t match.