Wish my missus was as dirty as your wax
As long as your feet still stick then the wax is ok. its just asthetic and if your surfing a lot you'll get very fed up of rewaxing every 3 sessions very quickly.
as for how much to use, again if you have grip then theres enough wax. i would suggest that a full pack of bascoat and a full pack of top coat would be more than enough, maybe even too much. I dont tend to use basecoat but it can be useful.* ps really i just wish i had a missus.