Hi Diki,
I collected approx 5 gigs of soundfonts during my "Softsynth/ Software Arranger" phase (commercial & freebies).
They were pretty much the only editable option for style tracks for OMB.
Case of either editing every psr style I wanted to use , or try editing the soundfont to suit the styles themselves. Got part way there. Mix n match of individual instruments from various soundfont banks.

Basically wanted a psr arranger module for my clavinova.

Some of the sounds are really quite good, especially some of the strings. The piano's sucked, & remapping the drums to xg was a bit of a nightmare, only because I really don't know much about the tweaking process of sounds.
Knew how to shuffle them around, but not how to get the best sound out of them.

My pc got glitchy, packed it all up & bought the Korg.

best wishes
Rikki