I'm making a 2 tier cake for a friend and she needs 50 servings. I don't go by the charts because I think they are way too small of pieces and since I'm not charging (because I can't...lol) I want her to have normal sized pieces. I was hoping to do a 8 and 10, but even the "chart" says 48 servings. I would rather not have to do 10 and 12. Is there a better combo or am I stuck w/ the bigger cake? Oh, also there *may* be a half ball pan on top (kind of a 3rd tier).
Any suggestions??

I use the Wilton chart and it says an 8" and 10" is 62 servings. I think you are fine with that.

Thanks! I think I'll do the 8 and 10 plus the 1/2 ball. I guess I just needed some reassurance!

Do you have to do a two tier? It may look a bit squatty. Would you consider a 4-7-10? or a 5-7-9?

Ah, I missed that, yes that will help!

Have you tried using this:

http://shinymetalobjects.net/cake/calculator/cake_calculator.cgi