[LAU] options for hard real time kernel for raring 13.04

Hey all, I just switched to Mint Olivia 15 (based on Ubuntu Raring 13.04). I use quite cpu-intensive puredata patches with processing of 2 live audio inputs on a firewire soundcard through ffado and qjackctl (jack2). Although my machine runs a low-latency kernel and it has been configured for pro audio (I use the realtimeConfigurationScan script), I still get xruns and sometimes qjackctl randomly hangs up making the sound to stop completely. Before, I used to work with ubuntu 10.04 and rt-kernel without a itch. Is anybody still using a rt-kernel with the latest Mint or Ubuntu, or just refining settings etc..? if a rt-kernel is the best option, should I patch mine, since it looks like there are no packaged rt-kernels for Raring? Can't access Abogani ppa, and KXS kernels are available up to Precise. thanks in advance for any hint, or suggestions about what to try! best wishes, -- Marco Donnarumma New Media + Sonic Arts Practitioner, Performer, Teacher, Director. Embodied Audio-Visual Interaction Research Team. Department of Computing, Goldsmiths University of London ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Portfolio: http://marcodonnarumma.com Research: http://res.marcodonnarumma.com Director: http://www.liveperformersmeeting.net