Hi Bill - and attached here is the result of doing those 2 sweeps + planar for the front + join on those curves that were 10 times larger in size - you can see all those artifacts are gone here since the fitting tolerance was small enough in relation to the objects.

Those kinds of other bulges and sags are basically what happens when a surfacing mechanism that relies on refining things ends up using a too large tolerance in proportion to the object's scale.

- Michael