robtillaart:
Code looks not bad, reasonable amount of comments, good use of functions (did not scan all 900 linesI see some repeating patterns that could be combined in some functions (esp LCD math to display values /10 & %10 )
Furthermore you use Strings quite extensively, rewriting the code so you use only char arrays could shorten your code.
Yes you should estimate how long the arrays need to be but that is not too complex.
Awesome. I'll work through those and release an update along with a version that'll fit on an Uno once the code loses enough weight lol
Thank you for you input 