Black Poplar Root

I made some works with a Root of Black Poplar...
I have pictures of just one piece, i got problem with the other...
Size is 31 cm large 16 cm high....

Bark was everywhere inside,

It's benn difficoult make a good grip for the chuck,
Inside hiding bark  make me think that it couldn't be so strong sealing...
so i dig in the poplar a 8 cm hole, deep around 10 cm too,
which was fitting the right size of a thick okume disk..
pressing the tailstock, I did the grip that allowed me to dig in with more confidence....

Had very nice turning on this Poplar root,
but i got also one that on the contrary was quite fluffy,and flew away from chuck at least 10 times...
unturnable...

Cheers
Paolo