When it comes to identifying artists, I like to think I'm pretty good (but mostly with older ones-- by which I mean, nothing in the last 10-20 years). But Nick Caputo blows me out of the water. When I worked on Nick Simon's site, I often consulted with Nick Caputo. Most times we'd agree. Most times, I'd realize he was right. A FEW times he's say I was right. But he was always helpful, and one of the guys who contributes to the GCD whose opinion I trust the most.
As for writer's credits... that's a MINE FIELD (as anyone who's on any "Jack Kirby" group will tell you-- the "Stan Lee" contingent will harass you to death for trying to speak the painfully obvious truth).
A particular one that sticks in my head was CAPTAIN MAR-VELL #11-12, which I believe have the wrong (or at least, incomplete) credits for writer listed. It's funny that a really HORRIBLE run of comics should draw so much of my attention, but I read the first 25 issues of that series 3 times in the last 12 years. And by the 3rd time, a lot of mysteries became quite plain to me.
Arnold Drake is credited with #11-12, but not only does the entire thrust of the story change 4 PAGES into #11, so does the writing style. And, from then on, it's all CONSISTENT with #13-15... which are by Gary Friedrich. Drake told me he had a record of being paid for #12, but couldn't find it for #11. No matter. My conclusion? Drake wrote #11-12... but what he wrote was NOT what was published.
Since #11 also switches artists ABRUPTLY (the "story" in the Bull**** page about Dick Ayers "wanting a break from drawing both SGT. FURY and CAPT. SAVAGE" is obviously bunk-- Ayers LOVED doing war comics!!!). You don't just swap artists because one of them wants a "break". Anyway, #11 contained the WORST art job I have ever seen back then from both Dick Ayers AND Vince Colletta. My conclusion? Stan Lee decided he wanted a DRASTIC change in the book-- NOW-- which, among other things, would give him an excuse to BOOT Arnold Drake out the door (Drake complained that Lee kept accusing him of being a "Communist", because back at DC, Drake had tried to get medical benefits for freelancers). And I suspect the entire book was done OVER A WEEKEND-- script and full art.
I keep picturing that, somewhere, there may be an entire issue of Don Heck pencils that were never used, sitting in some drawer.