Wnuck,

We will all probably have to modify something to get the CG right,, BladeRepair guy, said he didn't have to shorten the tail boom, Hmmm..

Dave / Choppersrule
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"I'll be completing my DD install later this after noon, here's a quote from BladeCPRepair..

"Allow the CA to dry as indicated by the product's label. After a short run-up recheck all screws and the retaining nut for security. It would be wise to check these also after the next couple of flights.

You will undoubtedly have to adjust the 4-in-1 Gain and Proportion settings.

Check the aircraft's center-of-gravity (CG) as outlined in the owner's manual. You will need to move your battery all the way forward. If moving your battery all the way forward still doesn't provide the desired CG then consider cutting an inch off of the Tail Boom. I did not have to cut anything off of the Tail Boom.

And finally... was it worth the $22.98 (plus shipping). I think the answer is "Yes" in varying degrees depending on what type of flying you do and how well you do it. If you're an experienced pilot you will love the tail authority available. A brand new guy who is still putting the tail in the dirt fairly frequently will probably be frustrated by this mod. Wait a month or two. For the people that are primarily hovering, you will notice a slight improvement in tail response."