The static errors in the PA28 are pretty small in a sideslip, I can't see a particular problem there.
But, I agree with "no need to slip" -the PA28, slow with full flap and (in an Arrow) gear down will descend at an angle that is quite steep enough for any reasonable purposes.
I wouldn't, myself, use the high speed variant unless you have a lot of spare runway - what PA28s don't do at-all well is get rid of energy in ground effect.
G