Well, after two weeks of use, I have to say that this was an invaluable addition.
I've used the scope on the wettest nights (without) the dewshield, just to place extra load on the heater.
It came through with flying colours.
Since the Lightbridge shares the sec mirror holder with the Guan Sheng branded scopes, if dew is your major opponent I would recommend this as a worthwhile project.
