Greetings guys! Its nice to know these things before the disaster happens. The big problem is how do you go about reinforcing the wing joiner when its already epoxied ?. I make it a point to always reinforce the firewall irregardless of how it arrives from the manf. [I.E. Hanger 9 ] and yes , the LG reinforcement plate is a good idea. I have twenty-two fully operrational RC planes and have only lost a couple to mechanical failure in just over five years. Talk to me on this joiner problem, any ideas. A little bit of old age is slowing the thought process down. Seeya, MJS