Thank you everyone.
As for the tear out, I did use a backer, but it didn't seem to help. I tested the bit yesterday (at different speeds, Merlin
) and no matter what I did, I ended up with tear out both on top and bottom, so I'm quite certain it's just plain dull! That's okay though, I've had this set of bits for a good many years now.
The dimensions are approximately 8" x 8".
Going to try my first attempt at segmentation next for a Mother's Day present. (Another one of Sheila's patterns!) Wish me luck!!!