first, thanx a ton to linuxsampler developers
in the plan to create my own set of instrument (free of course
) I start playing with SFZ which seems really cool, expect that I read there http://linuxsampler.org/sfz/ that loop_sustain opcode might not be supported … but this document is stated as maybe not up to date … 
Was wondering if anyone knows about actual loop_sustain opcode support ?
or if anyone could suggest an alternative for implementation of sustain pedal ?
or if I better switch to another sampler format, and which ?
Thanx a lot and long live linuxsampler