At the risk of bumping an old tread can you provide an update and some more info and maybe close-up pics on the type on Vsnails you have, please?
My old system had them bad and I tried BB snails but I never saw one eat one or a reduction in their numbers at all.
I tried a TON of other things like starving, urchins, coral snow, etc but nothing seemed to work for me.
Fast forward to today and my new tank (downsize when I moved) has them starting to pop up. I'm manually removing around 3-4 a week until this week when I found 24 yesterday.
I honestly hate these things with a passion and I would love to have some more info regarding your success/progress.
Many thanks!