I have heard complaints from soloers or other people in general about wizards joining their duels when they don't particularly want them to. Luckily, you can stop this and I will tell you how. First off you will need 3 other wizards whom agree or also want solo. You can all help each other accomplish this by all joining a group and not joining on another's duels. The spaces will be reserved for them so others cannot join and you will be alone cause they aren't joining either.
is a great post. What an elegant solution to this problem.
Thanks.
P.S. Solves the vandalizing of your fight by the pranksters that see you are low on health and join to bring in two fresh mobs ... only to flee the first chance they get.