A rising tide lifts all boats, they say. But the old aphorism about the economy apparently does not hold true for Vineyard real estate, as the most recent property valuations show.

A growing group of West Tisbury taxpayers, furious at their property tax bills and concerned about how the taxes are computed, received little solace during a stormy two-hour informational meeting with Vision Appraisal Technology on Tuesday evening at the Howes House.

A dozen stunned West Tisbury property owners crowded the normally quiet town assessors meeting this week to question their assessments and tax bills, which have more than doubled this year.

A property tax revolt is quietly brewing on Chappaquiddick, where a large group of landowners have banded together and hired an attorney to challenge their latest property assessments.