the more stages of gears you have in a servo the higher the inertia and friction gets. the higher the inertia the more difficult it is to stop and start on an exact position. I think some titanium is as strong as some steel. lighter gears = less inertia.its a premise based on science. there are allot of ifs in the statement though which could leave it firmly in the realm of marketing but then again...

I like the AGF. its precise fast. and positions well with plenty of torque. it has not made a drastic improvement but I like it, it works, and its durable.