No, I can't see why you would to be honest. Unless you want it to be more intense. Have you also looked at colour touch? The reds are amazing in colour touch, and I'd generally pick CT over KP for depositing a new tone on prelightened hair.
In colour touch I'd probably go with 66/45 and add a very small amount of 55/65 if you feel it's necessary. Otherwise take a look at relights red 2parts /56 (if you can still get it) + 1 parts /44 +4%
This is one of my all time favourites!
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