I don't think that the squealing problem (micro-phonic is a better term) is something exclusive to BL's pups. I have a set of Seymour 5/2's and at a louder volume with distortion they too can get away from ya.
I have had plenty of Fender pups that also do the same darn thing. Is it frustrating? Yep. Is 60 cycle hum frustrating? Yep.
These problems have plagued Tele's and Strat's for years. Imagine the noise Jimi Hendrix had to deal with??
Depending on the player it sometimes makes sense to try and work around the problem by understanding the reason and the remedy when you use this type of pup. In my experience I find it easy to only use certain guitars for certain songs. This can't possibly work for everyone especially if all you own is one.
The EMG Tele pups are the quietest and the ugliest pups I have ever used in a Tele. The sound is more than superb it is outstanding but it makes me wince when I look at them. If they would apply the technology that they employ in the EMG SAV style I would be buying some in a heart beat.
Problem with EMG is they think the Tele T and TC pups they make look fine. They look like crap in my opinion but they cancel noise and sound really great.
The other choice I would recommend are the BL Keystones. They are superb looking and sounding. My only problem with them is that the coil is too fragile and not well enough protected. I have killed at least 4 of them and I can't see buying more until they get that little problem straightened out. That is my only complaint about the Keystones. If you want to hear them in action go check out my You Tube video for Cowboy Song.
They smoke at a high volume and sound just as clean pretty at a low volume.
The Keystones are prone to 60 cycle and that is something that is not easily fixed by any company. At least not yet.
Just my 10 cents, inflation ya know
