lol - finally a well thought out enquiry in this forum - please make sure you dont do that again!

basically fitzy is right - check the webbing at the front and you should be right - that's the main place they wear out.
1 - how many seasons have you been kiding for:
too many to care to remember
2 - how meany failures:
3 - failure type:
A few meany failures - like gooseonthebay... not sure what his major malfuntion is...
Seriously I have never had a hassle, but I have know a couple of others who others have things break (1km out!) and or undo (in offshore winds!)
consult my mate my murphy (or is that silviu?!?!) on when things are likely to go wrong.
4- harness type:
a- waist
but I have a backup b- genitals crusher which i use from time to time. if you get the right one there should be no crushage at all, and it saves the ocassional unintended salt water enema
also c- jacket is not such a bad idea, especially if you have to wear a PFD when kitining where you are.
5 - your weight (kg):
c- 75-100 (maybe!)
6 - your riding style:
somwhere between a- "scenic drive" and b- "rally car"
7- your frequency on the water:
whenever the wind blows baby!