2hbh slices work easily if your grip is double conti, or a weak grip combi. FrewMcMillian and GeneMayer (stronger grip than Frew).
With double SW, or SW/W, like HaroldSolomon, slices are not part of the game. Note his doubles partner EddyDibbs used 1hbh slices
"weak" grip is something with elbows in.