Deep breath, hold, release, deep breath, hold, release, deep breath, hold, release, deep breath, hold, release.
No, you did not "mess up" by feeding Ninja dry food to get his BG levels back up. (I'd say something stronger, but some people would be offended.)
You did whatever you needed to do to bring Ninja's BG levels back up safely. Feed dry glycobalance, some greenies dry cat treats, whatever you need to feed to bring the BG levels back up.
Did Ninja have hypo symptoms?

Or did he only test low at that 53?
Automatic dose reduction earned when you hit a low like that 53.
Next time, try a little bit of his regular food first, then try some medium carb food, then try some high carb food. Then try some simple sugar - honey, maple syrup, corn syrup, ice cream, whatever you have on hand that is mostly sugar. Sugar brings the BG levels up fast, but wears off quicker.
Wet food is digested quicker than dry food. Dry food has to get broken down by the stomach acids, before it gets digested and some glucose can get into the bloodstream. Dry food will take a few days to clear out of Ninja's digestive system. So what. It's what you needed to do.
Think of what you do as a nurse at school, if a diabetic kid has low blood sugar. Fruit juice, lots of sugar in fruit juice. Don't think may cats like fruit juice, but there are other foods to use. See above list of simple sugars.
One curve this weekend is fine.
I'd suggest Sunday as your curve day, since you will need to reduce the dose for tonight to 1.25U of Prozinc. Then you have the bouncing to account for, so doing a curve on Saturday AM cycle will not provide you as much useful data.
Ninja will get back on track, you will feel less lost, you will not be on the "tilt-a-whirl" carnival ride all the time.




p.s.
@Noah & me (GA)
@jt and trouble (GA)
@Juls and Billy
Emotional support crew needed here.