I know this post is old but I just order the GX26 and am putting it on a Sig Rascal 110, I will be swinging 18X6 on it.
Did have a question on break-in? For the people that have it what oil mixture did you use ? did you start out with a petroleum base first like lawnboy @ 32:1 and then go to 50:1 synthedic after gal or so ?

Just wondering how the rest has don it as I dont want to make a mess out of such an expensive eng

Thanks for any responce.

Jeff