Stinger length??

[Mick..BJ26..BL]

Im looking at putting a speedmaster stinger and new flex on my Delta Force 35.5 inch mono.
Does anyone know what the ideal length to get is?? Also do I have to get a matching rudder? Ive only got cheep pursuit hardware ATM, and think this would be a big improvement, cheers for the help DrWayne..Thanks

[ozzie-crawl]

the general rule is prop around 10% of hull length back from transom. in your case thats 90 mm
from memory the longer the stinger the more stable the hull is (front to back) making the boat longer.
but the further back the prop the more chine walk
so 10% is a trade of between the two,some guys like a bit less than 10%
as it can turn better
with the rudder most guys like the front of the prop even with the front edge of the rudder