Went to my first Mega at w/e and happily took part in my first "Lab Cache" - which was bit of a farce TBH, as we just wandered around the showground looking at placed items (e.g. playing cards, skull, lock on a bridge railing full of locks, etc) and at each stage had to think of an associated password. Punched the PW into the "Lab Cache" app, but there was no logbook to sign - I unexpectedly ended up with an additional 10 finds on my profile!! Now I see some geocaching.com stats reflect these "10 Finds" but not other stats - then horrifyingly I found "Project-GC" doesn't show Lab Caches at all, because the data is not included in the API from Groundspeak!!! So now geocaching.com and Project-GC stats do not match by 10 finds. You can delete the Lab Cache "finds" in your geocaching.com profile, but I feel Lab Caches have not really been thought out properly by Groundspeak. Virtuals (which I enjoyed) were removed and illogical Lab Caches brought in instead. Not impressed TBH.
Either Lab Caches should be sorted & supported properly and included in the API and MyFinds stats ... or be ditched!