Arthur (disregarding vision) would absolutely hyperfixate on it to the exclusion of all other tasks until he's completed it. actually quite good at them so it takes less time than you'd think but he's not doing anything else until it's done
Eiffel is the opposite end of ADHD where he tries it for five minutes, gets bored, shoves it in a drawer and looses it for three months, finds it later, rinse and repeat. would be good at them if they weren't inherently boring
Hunter is like. making spreadsheets on the optimal solution as he goes. genuinely enjoys it, stays up way too late working on it; won't stop until he's finished or it's confiscated. his perfectionism won't let him
lbr how bad was Parker as well when they were On A Case