..same reason I couldn't use the KORG Pa900 also which is worse then the S970 in visibility.....

... that has me confused Donny ... I velcroed (is that a word???

) an approx 1" thick board covered with speaker carpet to the bottom of the Pa900 to give it a slight angle ... even when set up at home where I use a standard folding chair (very low level) when practicing or editing styles etc. the sight angle is fine for me ...
But I still agree all KBs should have a tilt screen ...