Hi snookD, yeah the angle parameter (which is what is controlled by the top slider bar) is not so good to use as the only parameter when you have a surface that is pretty broad and large in size but only shallowly curved in shape.

In those cases putting in a value for "Divide larger than" will help to put in additional divisions without making more curved bits get too excessive.

It sounds like you have already figured this out, but you enter in a distance for the "Divide larger than" value, and it will make sure to divide any polygons larger than that. So for instance putting in a value of 1.0 will break up any polygons larger than 1 unit in size but not cause heavier meshing on things like small fillets.

- Michael