^ yes, that's what I've been led to believe from Jobst Brandt etc. The higher the spoke tension, the less likely it is that the spoke will lose enough tension over a bump for the nipple to unwind and the wheel to go out of true. The tighter the better, basically, as long as it's not pulling the rim out of true or damaging the rim around the spoke hole.
The other I was led to believe is that the lower tension = less spoke breakage (especially on the touring bike with huge load).
The other I was led to believe is that the lower tension = less spoke breakage (especially on the touring bike with huge load).