RE: How often??
Depends on what you call the off-season. I like shooting my bows and as such I consider hunting season the off-season. That's when my bows spend most of their time hanging around on some bow hook instead ofbeing shot.
Now if you're talking about theother ten monthsof the year then I'd say about 3-4 times a week during the winter and 5 days a week during the spring through fall, up to hunting season. I probably average 50 shots per session, at least.