going from testing 1 item 100 times to all items 1000 times is kind of a big increase xD, but this would indeed make for way more accurate statistics.
Anecdotally I myself have never felt that the odds are off. Ive gone on plenty of dry streaks, but ive heard of many players that got lucky many times in a row too (perhaps because its special and more likely to be worth mentioning?). Like for example i get really lucky on shell stats, but unlucky on proof rolls. I myself am then inclined to say my luck sucks (lost alot of money in proofs), but overal its just average.
From all the gambly things in rom stat odds are my lowest concerns, but would still be very interesting to see the results.
If utu can just clarify what item and stat(s), it would be really cool if some testing (1000?) with result table could be posted.
PS. i would also be interested in the HD-rate on pulls, idk if someone knows the numbers here?