Re: warm up a Hamer Studio
I've owned several Hamer Studios as well, and I still own a Special FM, which is their flattop version. I like the 59/JB combo, but I know a jazz/JB would balance better. The key is to set your amp so the JB doesn't sound to ice-picky, which it easily can. But then, the 59 might be too bassy.
To rememdy this, i would either go with a Jazz neck OR a set of 59s-that's what Hamer uses now and the set sound great. If i wanted to put some more money in, I would go with a pair of Seths, Antiquities, or A2Pros, all of which have warmth to spare.
With that said, I don't think of the Hamer Studio as a bright guitar-there is a lot of warmth there. and I would play with the amp settings if i were you before replacing the pickups.