I bought this to replace me stock bridge pickup on my Fender Player Strat. Yes, you read that correctly, BRIDGE pickup. If you own this particular guitar, you need a RW/RP SSL-5 if you want to keep hum cancelling on positions 2 and 4. Probably with other Fender strats as well, but not all.
If your stock bridge pickup Has North-up polarity you need to get this pickup, if it has South-up, get the regular SSL-5.
Furthermore, if your stock bridge pickup is CW wound (on Player strat it is), you install this pickup normally - white wire is hot, black is ground.
But if your stock bridge pickup is CCW wound, you need to reverse the leads.
I hope someone found this useful, I went insane over this for 1 week straight because the information on the internet (and also thomann support) is very contradictory. Use your own brain and facts.
Regarding the sound:
Honestly, I was not that impressed.. I can't say I even hear a big difference between my stock pickup and the SSL-5, but this may as well mean that the stock pickup was not that bad.