Hello all,
Im doing my first wedding cake this weekend and i would like some help/verification that i have everything thought out correctly -- Im not sure i have the # of servings for each cake right
-otherwise i think i have the stacking, smoothing and other aspects down pat

there will be around 150 people if more i will and an extra sheet cake
the stacked cake: each layer will be around 3in tall with no filling:
top: 6in (anniv cake) -0 servings
mid: 8in- 20
mid: 10in- 28
bottom: 12in- 40

extra sheet cake
11x15in -50
grooms cake (nascar kit cake) approx 25 - this is just a good guess

If anyone can tell me if this is correct, or how it should be would be great
--- many thanks in advance

Well, everyone will get a larger piece of wedding cake since you're serving up party size slices.

For the 11x15, even with party size servings, the yield is given as 60.

FYI, here are all four Wilton cake preparation/serving charts:

http://www.wilton.com/cake/cakeprep/baking/times/index.cfm

Look forward to seeing photos of your cake.

thanks you! any other opinions?