ORIGINAL: Daryl_y
RC_FEIND I think the 40 LA would be just fine for the Shrike, Everyone at our club who has Shrike have all said theirs came out nose heavy. Mine has about 3 oz of weight in the tail and that is with the recevier all the way in the back as well.
This is the reason I moved the firewall back while I was building. It was fairly easy to do and in the end I needed no weights for balancing.
Edit: Of course the weight of the tuned pipe and bracket might help the balance too.
