Vine maple take down, have some questions.

[CardboardDuck]

I got it roughed out, the sleeve installed, and straightened one of the limbs (it still needs a little more), but a couple of knots appeared on the belly side that I am concerned about. Here are some pics -

 

(the sleeve looks crooked here but it's just the angle of the picture)
 

and the knots...
 

They don't go all of the way through, should I just leave that area a little stiff, or drill them out and plug them?

Thanks in advance!

[PEARL DRUMS]

Fill them with thin Loc Tite super glue until it wont take anymore. Then tiller it out. It should be fine as long as the glue and knot stay solid as you work down. If not, fill it back up with glue and keep going. I have done this many times with all kinds of wood, works great.