Hi Mike,
Geoff had suggested mine had the same problems.
As I flocked the tube last Saturday, this gave me time to check the optics.
I was suprised how tight both mirror clamps were.
I aslo thought that my collmation was not right. As out of focus stars before flocking were, gibbous on one side of focus
So on re setting the optics I use Tectron collimating tools.
All is much better.
Stars are nice points and out of focus Stars are how they should be.
Good luck on doing yours, it will be better.