Derek (Fourth Feline) will probably drop in soon and endorse the Manhattans. I know he loves them in his jazz box.
Yes, ( Cheers Phil ) :)
For me the Manhattans are
the pickup for a guitar of the composition you describe,
BUT for
specifically playing Jazz or chord work. Very warm - open sounding and clear / articulate. The best way to describe them is your guitar's 'unplugged' sound but bigger , warmer and more articulate. Very 1950's Jazzbox sounding.
My concern here is that for the styles you are playing - a set of 'Mississipi Queens ' ( still fat warm, articulate P90 type single coil , but with more edge and muscle ) which I found
heavenly in a 335 type guitar - would be more appropriate.
In fact, for maximum focus under drive conditions I would say instead an Alnico IV magnet set of Stormy Mondays ( AII magnets will possibly leave the bass end a bit soft and unfocused or your style ) - or a Mule set. The Riff Raff ( which I do not own , but have heard ) will be too sharp edged and aggressive. The composition of woods / body shape on your guitar might only accentuating the treble content even further.
If yours is a
completely wooden floating bridge, keep the wooden base - and put a ( metal ) tuno-o-matic top on it. It sharpens the articulation and seems to seperate the string timbres / attributes more. I like the sound of a completely Rosewood / Ebony bridge for chord playing, as it tends to blend the string vibrations together - BUT as even in mellow chord melody playing, I like slightly sharper / resonant and more articulate melody lines between the chords, overall - a wood base / tune - o - matic top eventually got my vote.
Meanwhile it's nice to hear of someone else ( apart from Ratrod ) that likes to play 'large items of furniture'. :)
Exhibit A: Manhattans + Tune-o- matic topped floating Ebony(?) bridge.

Feel confident that whatever 'vintage' B.K.P. you chose, they are great at allowing the character of a semi-hollow or fully hollow guitar to 'breathe'. :D