[LAU] Gentoo Pro-Audio overlay: Jack downgrade?

It seems a recent 'emerge --sync' is wanting to downgrade my Jack...or is it? It looks like some dependency of FluidSynth is steering me toward the Jack package included in main Gentoo, version 0.121.3-r1, and trying to remove my 1.9.9.5-r1 package from Pro-Audio overlay. However, I know there are some differences in numbering scheme for Jack depending on whether it's the SMP or non-SMP supporting version, and also there's the DBus versus daemon thing. My current Jack (before emerging) is SMP with DBus (it can be controlled with the jack_control comamnd). Should I be concerned about this? What correlation does 0.121.3 from main Portage have to 1.9.9.5 in the Pro-Audio overlay, and is this really a downgrade? ebuild UD~] media-sound/jack-audio-connection-kit-0.121.3-r1::gentoo [1.9.9.5-r1::proaudio] USE="3dnow%* alsa mmx%* oss%* pam%*(-mixed%)" ABI_X86="(64%*) -32% (-x32)" PYTHON_SINGLE_TARGET="(-python2_7%*)" PYTHON_TARGETS="(-python2_7%*)" 1,059 kB [...] WARNING: One or more updates have been skipped due to a dependency conflict: media-sound/jack-audio-connection-kit:0 (media-sound/jack-audio-connection-kit-1.9.9.5-r1::proaudio, ebuild scheduled for merge) conflicts with media-sound/jack-audio-connection-kit[abi_x86_64(-)] required by (media-sound/fluidsynth-1.1.6-r1::gentoo, ebuild scheduled for [...] village:~# equery list -o -p jack-audio-connection-kit * Searching for jack-audio-connection-kit ... [--O] [ ] media-sound/jack-audio-connection-kit-0.121.3:0 [--O] [ ] media-sound/jack-audio-connection-kit-0.121.3-r1:0 [--O] [M ] media-sound/jack-audio-connection-kit-0.121.3-r2:0 [I-O] [ ] media-sound/jack-audio-connection-kit-1.9.9.5-r1:0 [--O] [M ] media-sound/jack-audio-connection-kit-1.9.9.5-r2:0 [--O] [ -] media-sound/jack-audio-connection-kit-1.9999:0 [--O] [M-] media-sound/jack-audio-connection-kit-1.9999-r1:0 [--O] [ -] media-sound/jack-audio-connection-kit-2.9999:0 [--O] [M-] media-sound/jack-audio-connection-kit-2.9999-r1:0 -- + Brent A. Busby + "We've all heard that a million monkeys + Sr. UNIX Systems Admin + banging on a million typewriters will + University of Chicago + eventually reproduce the entire works of + James Franck Institute + Shakespeare. Now, thanks to the Internet, + Materials Research Ctr + we know this is not true." -Robert Wilensky