4 on 4 off Schedule?

We haven't used that in 25 years... It sucked - it was confusing, especially to the midnight shift folks, and there was more resentment over lost holiday hours and vacation earnings. IMHO, don't do it - it works out to a reduction in hours for every affected employee.  I may be confusing this thread - we worked 4 days on 4 days off...  If the original thread was offering 4 hours on 4 hours off - that is simply a recipe for sleeping on the job.