compass on left wrist and computer on right - less uneasy maybe?
if not on wrist then i think bundle together with spg, or, onto the inflator corrugated hose could be a gd idea to have less dangling. both spg and inflator hose shld be of a gd length and not too long bulging or bowing outwards.
however, need to keep in mind the compass when u wash gear - regs often placed on boat deck (crush risk for the compass), and bcd is often dunked into container of water and dried upside down (a lot of shaking for the compass).
for the clip on retractable it'll be another piece of equipment to clip on/clip off when u prepare your equipment. for wrist mount divers often just strap the computer/compass together when not diving.