It really does depend on the prop design whether or not to run inboard turning props, or outboard turning props.
These are just my findings from a fair few hours of tinkering and on the water testing.
Raboesch props are best if turning outboard, also depending on hull design etc, the difference can be anywhere from: Hmmmm... Marginal, to Good God! Remarkable.
Raboesch are THE major third party supplier of brass props in the UK ie other people rebrand them as their 'own brand'.
I suggest an on the water test really, but what I will say is this:
You've spent a fair few bob on the kit, and a huge investment in time, why compromise all that for a small investment in time to get it right?
Protip with most boats you can remove the props in situ. If it's a bit marginal for longitudinal room, swing the rudders hard over and that usually gives enough 'wiggle room' to drop the prop out of place.
-Rob