I question the usefulness of the after market adjusters to be honest.<div>In my attempts toover tighten the tracks so that it stiffens the soft slacked grip of the Leo, I manged to adjust the tracks at the extent beyond the recommended adjustment that's required for track replacement. The upper hull won't even attach to the lower hull because the tracks obstruct the ability. While there may be a slight improvement inadjustiveby allowing oneor two notches before it's of no use.....I just don't think it's needed or worth it.</div><div></div><div>The only upgrades I purchased for my Leo was bearingsand metal swing arms. Could have likely done with out the metal swing arms....but I gotta be honest. If you intend on running the tank like it should and can be....it'll likely be a welcomed upgrade. I've been launching the leo off 1-2 foot ramps...lol. Can't imagine the plastic arms taking that kind of abuse...but then again, not everyone is gonna go EvilKnievel! lol Granted...I haven't taken it outside yet....and won't till I've gotten a chance to paint it....but I've given it a worldy test in my home..that's for sure. Friggin insane how it glides on surfaces.</div>