Haha I totally understand how you feel about the bars! I am okay with giants and dismounts but there is no hip contact for me with another bar ever. It is like when people are afraid to do a back tuck. I freeze and just can't do it.
Was your dad doing PH when the horse was shaped differently? I do PH and haven't had too many problems. The only one I can think of is being careful with the technique during scissors work. Same for PB.
I occasionally train on the beam as well so I can understand what the girls are having problems with when I am coaching. One time, there was a resi mat under the high beam. I went for a cartwheel and nearly straddled the beam. Fortunately, the resi saved me from never having kids. Needless to say, it ended that session of beam work. I am pretty sure the only competing I will be doing is tumbling and rings. At least until I have kids.