I spoke w/ Dimarzio.
- during the 70's, Dimarzio had both the SDS-1 and FS-1 single coil pickup. Both had visible poles, however, the SDS-1 poles were slotted so they could be adusted with a screwdriver. The FS-1 poles were not slotted. I wish I had a better picture of the single coil...
- the SDS-1 has much more low-end and the FS-1 is brighter.
- you can get any of their (non-humcanceling) single coil pickups in reverse wound reverse polarity (RWRP). The RWRP versions have an 's' added to the part number. Therefore, the parts are:
I think I'm going to try the FS-1 because it's brighter and has less low-end. However, since I eq out the lows, I'm not sure that's the right choice, so who knows...in the end, maybe I'll try both.
I'll let you know.