'The wet V1 is not a V1 speed because it does not imply any abitlity to continue the take off following and engine failure, and unlike a dry V1 this speed may be less than Vmcg'
This is a quote from CAP 385, the now defunct UK CAA reference doc for Performance A and based on the L1011-1. The V1 wet the original author was referring to was a max abandon speed on a contaminated runway and derived from a graph (which had several uses) as 'V1 wet'.
A real V1 wet is a real decision speed, I fear the confusion here may have been caused by a phrase copied out of context.