I was reading the question, and 38th's first response, thinking "oh no, is that me? :lol:"
And then there's Philking's reply - many thanks, you've said out loud, from more experience, what I suspected. :D
Bridge:
I have both BG Flat 50 and Yardbirds, and I'd recommend both. The 50s are in ash-body/maple-board guitars, and the YB in an alder-body/rosewood-board guitar.
In those guitars, I'd say the BG 50 is fatter and raunchier, and the YB sweeter, more of an all rounder. If I'm going for country/rock/pop-rock, I pick the YB guitar. If I'm going for blues/country/blues-rock, I go for the BG equipped guitars.
At present, Yardbirds are my favourite, but that will change when I start work on a project that needs one of the other two guitars :D
Neck:
Philly, out of the two I have, the Blackguard neck is much nearer to what you describe than both the originals (Baja twisted tele neck, and, I believe, a Texas Special neck). It is also warmer and more rounded than the Yardbird neck.
The BG neck is great for my warm blues-type noodlings...
The yardbird neck, well...
[gush]
For me, the Yardbird neck is sublime - I don't know how to describe it even, but it will do lead, rhythm (even on crunch/distorted tones), everything, it is so yummy...
[/gush]
I love it...
I think you want the BG neck :lol: (unless there are others (Piledriver?) better...)