Well after five years owning my Sport Cub S2, this was the year to upgrade a few items. First came new cylinders from Continental. Right away they went to Performance Aircraft to do the angle vale job, hone guides, port polish etc to fix the issues long term. Been worth that so far. Next came swapping the metal prop with the Sensenich ground adjustable prop (great upgrade plus weight savings). Next was 850 tires, AOSS gear and the gap seals. All told, it has been a great performance enhancer. The AOSS gear and 850 tires really made a difference on the rough grass part of our runway and the gap seals were definitely worth it as discussed in other parts of the forum.

Jon