Anyone have experience with Tone Ninja tuners? I usually buy Hipshot because I like their rail system which means I don't have to drill holes in the neck. Unfortunately, they have been raising their prices plus the Tone Ninja's claim a higher tuning ratio. But the Tone Ninja's look like they could fit on the Hipshot UMP rails. So has anyone used the Tone Ninja tuners? How do they perform? Has anyone tried to use them with the Hipshot UMP rail system? Thanks.