I did consider that if people were willing to stick it out when others weren't they would probably deserve more points for it anyway so...

It's fine! I like the 100 point system, and to be honest I don't think we'll have too much of a problem with having too many/too little participation. I just wanted to make sure the possibility was recognized before hand in case it came up and we got complaints about receiving so few points even if a judge went on and on about how great the entry was.