The location of the hole (perforation) in the eardrum also effects the degree of hearing loss. If severe trauma (e.g. skull fracture) disrupts the bones in the middle ear which transmit sound or causes injury to the inner ear structures, the loss of hearing maybe quite severe.
1 Resting 1-3 minutes between sets is probably ideal for you. 2  The higher your training intensity is for a given exercise and/or the more demanding it is on your body, the more you should stay nearer to the 2-3 minute range.
Generally you should wait at least 3 months after your acount is open to ask for a CLI. (and later requests should be no more often then 3 months apart) How often they review your account likely depends on the account you have, if it's starter card it's probably only once a year.