I cannot get MEP to apply the correct radius "elbow" when placing conduit.

The "elbow" comes in with a 7" radius when it should be a 17" radius (approx.) for 3-1/2" dia. GRC (galvanized rigid conduit). This is using the setting for threaded bent conduit--not conduit elbow. When using conduit elbow, a different radius is applied, but we customarily use bent conduit, so that doesn't help.

The catalog that MEP refers to was checked against other coworkers with MEP and it is the same. Other coworkers get a different radius, when using the same tools and doing the same thing. I don't get it.

So, how do I change the radius for conduits using GRC, or any type of conduit really?

Thanks.