Hero Skill Problems Using Maintained Enchantment

I have been using heroes to go through the pve sections of the game and found some problems while using signets and maintained enchanment spells.

For example I am trying to use healer's covenant on my healing hero, to have some energy efficiency for his healing spells. I placed healer's covenant as the left most skill to give it more priority, but noticed that the hero never either actually uses it, or he would use it and cancel the enchantment. Even if i override the ai prioritation and click on the spell to cast it myself, the ai automatically take the enchantment off.

The same goes for life bond skill. The ai randomly cast it on people and keep turning it off and on, while I actually want it to stay put.

I have also been having trouble with signets too. The heroes never actually uses some of the signets.

The question I have is, has anyone found a way around this problem, or offer a solution that could work.

Thanks.

the only thing you can do is disable the skill you want. shift click... then force the hero to cast it. the hero wont remove the maintained enchant.

Yup, the only way to keep them form removing the maintainment is to disable the skill.

For the signets, it seems they speacilly never use monk healing ones. I think that can only be fixed by Anet themselves by improving IA.

I give my hero monks Signet of Devotion. While they don't use it as often as they could or as often as I'd like, they do use it without my prompting occasionally.

I tried to put them in the first slot and used 6 maintained spells to empty Tahlkora's energy bar.

Entered battle and she never used them.