How much should the mast twist ?

Trying to figure out how much the mast should twist when sailing and if my shrouds need to be tighten or replaced ?

I would say the track is pointed at least 45 degrees off the stern - so like over the back corner - depending if I'm port or starboard tack

Shrouds def have some play in them when not under tension and could easily work the pin to the next hole - this would leave me with one pin hole left for adjustments for the shrouds - how soon should i be looking at getting new ones ?

If I replace the shrouds - should i replace the forestay as well ?

Thanks for any tips you can give