I've not had issues with her in the hackamore. From what I understand, she's been ridden all over the state with just the hackamore. I've only had the horse for 2 weeks and so far she's a dream to ride compared to my old horse.
I don't know anything about hackamores so I don't know if it has long shanks or not. I'll try and get a picture of it.
I have used a french link O-ring snaffle with her (when they recommended the TT) and she's fine in that. I just don't like the immediate "put her in a TT" when she might not need a bit like that.
"When you're young and you fall off a horse, you may break something. When you're my age, you splatter." -- Roy Rogers