Go into the options and unselect, or turn off, to use AutoEquip. There's an option for it inside the bot options panel.
Hi, Kayes, As usual, Zeldrak is spot on with the correct answer. Heirlooms quit scaling after a certain point. There are certain 'inflection points' while leveling where even greens will beat Heirloom gear. The algorithms the bot uses to evaluate gear should apply to scaled Heirlooms as well as normal drops. In short, the bot should be making the correct gearing decisions at all times, including Heirlooms. (Trinkets being the exception.) If not, please make a new thread in the Support forum with a full log of the 'bad choice'. If there's a problem with the gear evaluation mechanisms, its something that should be corrected. cheers, chinajade
You're right. If I'm not mistaken, I believe heirlooms (without the upgrades you can purchase for the heirlooms) only go up to level 60, or maybe level 70. Anything after that will be better than heirlooms, unless the player upgrades their heirlooms to reach level 100, in which case you can actually wear heirlooms until you get dungeon gear.