Sitting in the Chair

I’m constructing a new bondage chair this week using 2X4s. The question I have is what height should the chair be? If it’s too low, my legs tire out quickly; if it’s high enough, they don’t get tired at all. Plus, there’s the factor of an eight-inch dildo to consider. Rather than going with sharp items (which can be risky and leave marks), I’ve opted for a TENS unit paired with two aluminum strips attached underneath. Because I’m building this chair with swap-out seats, it’ll also work well for forced urine drinking situations. RubyQ