The old Foundation basses had Super Ferrite pickups. I never thought they were special when I had a new 1983 Foundation back in 1983-1991. I thought they were actually kinda mid-forward. They're definitely loud.
I have a Foundation just like the second one in the photo above with the VFL housing pickups. It sounds great but has less character.
I recently got a replacement 1983 Foundation - same finish as my old one - sunburst and rosewood. The pickups are still loud, but I like the mids more now, and I don't remember the tone control being so subtle, but it came stock with a 0.022µF cap so it's not as pronounced of a roll off as my other basses. Sounds great though, and the neck is as slim as I remember. They're super stable since they're made of two pieces of maple split longitudinally and glued together, I think with one side flipped to counter any natural warp?
Foundation basses were underrated for a long time. I always liked them much more than T40s, and I thought they looked better too.
The T40s make me think of Country music, cowboy hats, aviator sunglasses, Dad jeans, Western shirts with snap buttons, and cowboy boots.