"Flip screen" dipswitches usually are for the monitor mounted upside down, not cocktail-type flipping.
And going through the source, some versions of Arkanoid have a upright/cocktail dipswitch, while
all have a flip screen dip. So, it looks like the flip dip you're messing with isn't for cocktail-type flipping.
These sets do NOT have the cocktail dip:
arkanoid, arknoidu, arknoiuo, and arkatour
These do:
arknoidj, arkmcubl, ark1ball, arkangc, arkangc2, arkblock, arkbloc2, arkgcbl, paddle2, arkatayt, and arktayt2
So looks like you'll have to use a different romset than the parent set, and is from the second list above.

[shrug]