Too much XP rewarded from Gem Stall

Unfortunately, this is not confirmed by replays.

I remember trying to get Revisionism to thieve the gem stall, and I did get him to thieve the gnomes, but apparently he never did gem stall in replays. But it does look like tip.it was like "16 (??)" then confirmed it at "16", and they even include the fatigue amount. Zybez also says 16.

[https://web.archive.org/web/20031206111927/http://www.tip.it:80/runescape/index.php3?page=thieving.htm Tip.it thieving guide]

[https://web.archive.org/web/20030724183218/http://www.zybez.com/thieving.htm Zybez thieving guide]