Depending on the model I am using, will depend where I do the initial calibrate from. I have a xenomorph avatar, that if I calibrate in the middle like normal, its wonky, so I stand about a foot ahead and it lines up correctly, yet still keep my hands back where they should be. I find my hand position somtimes dictates my head and hips moving forward, so perhaps move up or back, but still keep hands on the avatars hands. Imho, this really depends, I would say, get the Y/X Bot full body working before moving to a custom one. Also messing around with height also helps, which is sometimes easier than using Driver4vr’s controls.