rig tuning

[Tim Stewart]

I know that to get a rig tuned correctly the yacht should be sailing as you're tuning, but many people just tune their stays whilst along side. Can anybody give me advice regarding this. For example - are tunes along side sufficient enough for the crusing sailor who just likes to take it nice and easy going from 'A' to 'B', and full sailing tunes for the racing sailor who likes to push the limits.
I look forward to the replies.
Tim.