Debit spreads taught me that being right too early can still be annoying

I've been using call debit spreads more instead of straight calls when premiums are expensive, and I ran into something I somehow never really appreciated until it happened with actual money. I had a QQQ 510/515 call spread open on Moon with a little under 2 weeks left. Paid around $1.60 for it. QQQ moved way faster than I expected and was already above 517 with more than a week still left. In my head I basically thought okay, thesis worked, spread should be pretty close to the full $5 now. It wasn't even close. The 515 I sold still had enough extrinsic value that the spread was sitting around $3.70. I knew mechanically why this happens, but actually watching both legs move while QQQ was already comfortably through my short strike made it click differently. I got greedy and decided I'd just wait for the remaining value to collapse. QQQ pulled back a couple days later and I ended up closing around $2.90. Still a profitable trade, but it was probably the first time I've been annoyed at an options trade where I got the direction AND size of the move right. Starting to think that with debit spreads I need an exit rule based on percentage of max value rather than where the underlying is. Like if I can collect 70 to 80% of the spread's max profit early, just take it instead of waiting around for the last dollar. For people who trade these regularly, do you usually close once most of the spread value is there or are there situations where waiting for the short leg's extrinsic to decay is actually worth it?