No recent swinging experience, but was active as one half of a married swinging couple before it was popular, back in 1977 - 82.  My limits are simple - pleasure should the goal - I won't do anything that involves cell damage ( cuts, bruises, abrasions ) or anything that puts me at serious risk of arrest. < everything in life has sone risk :-)  >       I am currently usually limited to daytime encounters - 8 - 4 with only the occasional evening or overnight.