Thanks for responding Kinyonga,
She has been digging test holes and so forth for a while, some she leaves and some she fills. Theres really no pattern to her methods.
She has always been a full looking girl, and by that I dont mean overweight, just robust. When I remove her to physically examine her, she doesn't feel like she has any eggs in her really, no aparent bulges or lumps.
This last hole was not completly filled in, Is it possible she will return to it to re-dig it? She leaves me scratching my head.

When I came back in to peek in to see if she was still in it, I found her in her basking spot. I proceeded to her cage and she looked the same as always. After digging that hole I figured she was hungry and thirsty, so I offered 3 jumbo silks with calcium and it was followed by a extended misting period. She ate 2 of the 3 worms and drank for about 30 seconds. I then removed the bin and went throught it to see if she dropped any eggs, and came up empty handed. The bin was then replaced and lights went out.
I know the substrate is suficient, since she was able to dig a text book tunnel. In addition to the bin is a small ficus tree off to one side, and the lower branches drape over to provide perfect cover to the entire bin. The bin is roughly 14" wide and 14" tall and opaque. I am doing every thing I know of by the book. I guess I should have stated that this is the first full tunnel shes dig and backed into, the rest were never this deep and uniform.
Any additional thoughts Kinyonga?
Thank you very much,
Jay