Generally when i play the typical matched grip, my setup is always symmetrically straight. I usually sit higher with my legs angled slightly downwards. As matched grip is kinda low position grip (around waist/belt height). Also my toms are angled just slightly towards me. This allows almost neutral position of my wrist as i move from snare to rack toms to floor toms.
*** I modified the throne to give an additional 2 inches. Too high, can feel ache in my right leg and back (I play heel down). Modified again and now slightly higher than the original. Not used to heel up which most people say is better for speed and power. Feel my front toms are further away than I want, constrained by Yamaha's toms' support on the kick drum, wish that the support is closer to the drummer. But their YESS design may dictate the tom support location. Dont plan to get tom stands to get the toms closer to me. Guess I will learn with the current tom locations.
For traditional grip, usually i follow the marching snare style where the snare is kinda angled more and then build the toms around that natural angled left hand going round the kit.
*** After many trials, think my mid tom orientation is now 90% OK for me.
These guidelines which i learned from many drummers especially Dave Weckl helps me to be almost water like fluidity in motion when playing.
*** Wah, a sifu here. Are you into rock, jazz, etc? The best drummer you can recommend for me to follow in the web? Thanks.