I tried it again, it finally goes in and clip in place. It is slightly harder for M&M, my other V2 snaps in easily.
I always use the protective transparent tape from the landing, paste it on the tail fins that will meet with the two small antenas to protect the paint, it works.
Agreed. I also notice another problem on M&M that when you place the fast pack with the connecter in place, you will see 2 scuffs on each side of the back plate when you remove the fast pack. Unlike other's in white or gray color, the red and blue colors make the scuffs much more visible.