I thought I would be clever and fill plenty of bobbins ahead of time so I wouldn't have to stop in the middle of stippling to wind some more. I thought 6 bobbins would be a good start. lol I haven't quilted anything as large as Fantasy Pony in a long time (60" x 60"). Six bobbins got me through about half the quilting. I'm really pleased with the thread match and with the quality of the bobbin thread itself. I had never used Presencia thread before, at least I think that's what it's called. I love the cheap (40% off) backing fabric I found at Hobby Lobby. I think the thread-fabric color match is dead on too.
Presencia is a lovely 100% cotton thread that comes cross-wound on a large silver grey spool. Very little pilling, no breakage and almost completly tangle free. I wish I could say the same for the Premium Sulky 30 wt. All-Purpose mercerized cotton I'm using on top! I bought it because it is variagated in color from a greenish yellow to a lovely grass green and coordinates very well with the pony panel, but yikes! I have NEVER had thread break this often. It is by far the weakest thread I have ever used. I replaced the needle, played with top and bottom thread tensions... everything I could think of, and still it breaks repeatedly. 
I dislike the thread so much that I was glad my LQS was out of stock when I went back there for more. I might not run out, but if I do I'm going to finish up with a plain, light yellow green Mettler silk-finished thread, which has never let me down yet. And if I have any of the Sulky thread left over when I'm done, then I'm pitching it out! I'll never quilt with it again. Stitch stitch Break! Stitch stitch BREAK! Argh! Seriously, I can just pull the thread apart without it cutting into my fingers at all. That's not normal. Oh well, I need to get back to stippling it instead of just complaining about it. More later.