Is stacking identical skills good?

There are some skills that have identical effects. For example, corner/straightaway adept vs [running style] corners/straightaways vs [race distance] corners/straightaways. Those skills are all good, but are they useful if I already have one of their counterparts? I’m currently doing a Tamamo career to use her in medium team trials. I have corner adept and straightaway spurt. Should I get medium corners, end closer corners, and/or straightaway acceleration if they become available, or are they not worth it because I already have skills that do the same thing?