Thanks Bax

... I posted this once before but it didn't go through. Since you are also connected to OS engines....
I've run into a bit of a problem...here in India the choice is rather limited so ... the only engine available is the OS 91FX.... I have read all that is availabel on this engine on RCU untill my eyes beld...I'm just concered about the quality issue regarding the needle valve and bearings....As per the posts OS has fixed this engine... so is it a good engine?..how does it stack up against the ST G90 (my first choice) in terms of power and reliability/longevity? Please bear in mind I have to pay 50% extra due to the import duty...and wouldn't want to buy a lemon.
Secondly again due to limited choice the props availabel in the 13-14 inch range are the Master Airscrew K-Series 4 stroke.. are these ok to use on 2 stroke engines?