The Super-D should be pretty smooth (always depends on what it's in for certain aspects of the tone, of course)... there's quite a bit of output there, and it's got a lot in the midrange department (it's the same as a
Dual Sound, and this has been my
bridge pickup of choice for many years on my 6-strings).
If you do wire it in parallel, you will find somewhat less output, and an emphasis on a lot of treble frequencies - something closer to a single coil sound, though not as 'thin' as that...
You may find it a bit too biting for your liking, especially if you're expecting smooth...
You can always try it to see - it's a simple enough wiring scheme to try, then reverse if you don't like it...
That's my take on it, anyway...
=]