Printed with 6 walls/perimeters (might be overkill) and %40 gyroid infill. (or 30 idrc.). My edges creeped while printing so yours might not lift while shifting.
The author remixed this model.
The original model was too flexy/unstable for me (maybe because i printed it with lower infill). This model has less flex (almost none, only lifts around .5 cm when shifting towards yourself, might be fixable with some tape), though it stays on top of the table, so the shifter will be on a higher level.