I have this 335 clon guitar, which has great wood & neck profile, but as usual, stock pickups were not that great. I replaced stock neck pickup with Seymour Duncan Seth Lover.
This video shows Seth Lover neck in action:
I noticed that overall sound has much more volume, due to full frequencies this pickup has.
It's very articulate and clean, so you can hear great chord/string separation. Also, some speedy jazz lick came out very nice as well.
Only downsize to this pickup is that it's very bright sounding! I did roll of tone knob to almost all the way down. I found this to be a problem among other SD models such as APH-1, APH-2 (Slash) pickups with Alnico II magnets...
Next thing I would like to try on this guitar would be perhaps Gibson 57' classic. I once tried those in my friends ES-335 (yeah, it is better guitar & wood). To my experience, they have warmer, mellower tone, but not as articulate and responsive as Duncans.
If only one could have best of both worlds?
Tell me what you think & your opinion on Seth Lover pups