if you put the retrig to INF. it won't retrig at all.
if it would, you could easily fill hihats with just one trig over the whole pattern.
..and another one.
if you put the 1 trig to retrig at level 127, it will retrig but unfortunately loose his value if you live record for example the TUNE parameter in realtime recording mode.
I wish they expand this little beast to the brim.