Thanks for the feedback. This is pretty good as, at least, the bugs seem consistent and 100% reproducible, which should help fix them :-) Well, stll, strange no one seemed aware of this before ?
@ Borut : hmm, there is actually no delay at all on my setup (Lyra 2) with Slam Tilt or any other game. Actually, most games work completely perfectly, but some (those 3 pinball games) are completely unplayable.