Manufacturers directoins are primarly designed for people with almost ZERO technical knowlege and ability.

This results in directions being full of rediculous warnings like dont stick your finger in the prop etc. etc. So is it any suprise that the break in directions are written for the person they just told not to stick his hand the prop ? Their mindset is to not have guys leaning the engine on beak in, because many people will lean the new engine until the engine is really lean and ruin the engine, and there is the warrenty return [:@] In the end, the break in insturctions are written OVERYLY CONSERVITIVE for those that dont know anything and to keep them from doing something really stupid like leaning the engine to much.

The manufacturers directions are NOT written for the best performance, they are written so that operators wont ruin the engine on the first run. When you look at the manufacturers motiviation and what they are trying to accomplish in writing the break in directions, its easy to see why thier advice might not be the best for all of us.

JettPilot