Covers are soldered on. Melt the solder, slide the cover off.
While there will be excess wax around the top of the bobbins in the corners where the covers were, you don't want to remove all the wax from coils (unless you like that sorta thing). Typically you can just shave the excess off with a butter knife (or some plastic cutlery), just don't get too crazy around the coil tape/wires.
As for tonal differences, some say they can hear it, others say they can't. I can hear a difference if I know the pickup has covers. Maybe it's a psychological thing, maybe it's real, who knows, but I do hear a slight reduction in the upper range, and a bit more focus in the upper-mids, kind of like a honk. Doesn't matter if it's plastic or metal.
IMHO.....I cant tell a difference between my covered Agile pups and my SD uncovered JB/Jazz....IMO its just a cosmetic thing that manufactures do on certain styles of guitars.....
Are you saying your covered agile pups sound the same as your SD's do?
Well.....since Im using a modeler, I cant tell a difference.....I bought the Agile used, so I dont even know what it has in it yet......Could be SDs or something, I dont know....the only difference i can tell is the brightness on the guitar with the SDs in it at the moment.....The Agile is mahogany and I havent taken the pups out to see what they are yet....
As for tonal differences, some say they can hear it, others say they can't. I can hear a difference if I know the pickup has covers. Maybe it's a psychological thing, maybe it's real, who knows, but I do hear a slight reduction in the upper range, and a bit more focus in the upper-mids, kind of like a honk. Doesn't matter if it's plastic or metal.
+1 to this–some folks hear it others don't. From my experience covered pickups tend to sound a tad more "mellow" than their uncovered equivalents BUT that is just me, others might not hear/feel the same.
I can definitely tell the difference between a covered humbucker and an uncovered one. I don't think either sounds better or worse, just different & the guitar should dictate what you use? Personally I think that uncovered humbuckers are a bit more aggressive and articulate. Where covers seem to add an more open and airy quality? I also think that when guitars are being developed the covers vs no covers question really comes down to looks more than sound, so sometimes you end up with a guitar that has covered pup's but probably shouldn't, or vice versa? In any case, you can remove them quite easily just like you can add them quite easily. Just be careful when you are removing the excess wax & wrap the bobbin with some electrical tape if using a pickup ribbon is not possible....
I'm pretty much in the same camp. I have both an LP Standard and an ES-335 set up with a pair of '59s. In the LP I like uncovered for the extra brightness and aggression, whereas I prefer covered with the 335 since it seems to smooth out the highs a bit.
We are all entitled to out own opinions though.....for me NO DIFFERENCE
I think this is why people have different guitars? I know looks is in the mix when making a decision in guitars, but (at least for me) I would think the different guitars would give you a different feel/sound?
Well.....since Im using a modeler, I cant tell a difference.....I bought the Agile used, so I dont even know what it has in it yet......Could be SDs or something, I dont know....the only difference i can tell is the brightness on the guitar with the SDs in it at the moment.....The Agile is mahogany and I havent taken the pups out to see what they are yet....
IMHO.....I cant tell a difference between my covered Agile pups and my SD uncovered JB/Jazz....IMO its just a cosmetic thing that manufactures do on certain styles of guitars.....
We are all entitled to out own opinions though.....for me NO DIFFERENCE