I have the CS54's and 57/62's and the first thing I would point out is if you look at the Chart thats been around showing the number of windings over the early Fender years from 54 onwards its both the number of windings and thickness of the wire mostly that changes. The 54's have less windings than most and compare well to the 1959 year on windings and guage. I personally prefer the 57/62 but exactly how many windings they have I do not know because they cover several years of production but were reverse engineered of a 63 strat I think so maybe a clue there.
http://home.provide.net/~cfh/pickups.htmlI did not realise till recent years that SRV No1 guitar had 59 pickups and have heard of some other top players in blues territory going back to 59 for less hotter tones which seems to contradict what I always thought blues guitarists did by going for the hotter Texas type over wound variety which of course many do.
Strange really but both HBM and SRV had guitars that probably had 59 PU winding specs. maybe the gauge and the number of windings has something to do with it ?
So maybe Sliders 59's and CS54 by Fender are not that different overall ? although scatter winding and so on may add to tones ?
Maybe the TVS is 'voiced' for the CS54 PU as well as that team certainly have used them a lot and seem to prefer them ?
I still think a good guitar setup plays a big part along with PU heights and so on and pickups can sound different on on guitar to another so many variables not least the plectrum and picking style and player.
Lets also not forget the PU's are coils with inductance and along with the capacitor and pots something called Q is affected and resonance but thats another long complicated thing requiring electroics knowledge. I understand players often mess with there volume and tone knobs or 'roll off' so maybe that affects the Q of the pickup ?