THAT is the question 
I'm making my son an OU football helmet cake for his b-day saturday (BOOMER SOONER!) *sorry couldn't resist 
and I'm using the oreo filling from this site to fill it. Do I need to use a dam? I'm using buttercream not fondant on the helmet if that matters.
TIA!
I think you definitely need to dam! Especially if it's for a d#$% Boomer Sooner helmet--Go Huskers! Just had to do it!!! I'm a transplanted Husker living in Oklahoma--I bet your helmet will be great and I bet the Sooners would beat the Huskers (again) if they were scheduled to play!! Now back to caking--I've just had some bad experiences if I didn't dam before filling--are you going to do lots of carving after you fill?
I think you definitely need to dam! Especially if it's for a d#$% Boomer Sooner helmet--Go Huskers! Just had to do it!!! I'm a transplanted Husker living in Oklahoma--I bet your helmet will be great and I bet the Sooners would beat the Huskers (again) if they were scheduled to play!! Now back to caking--I've just had some bad experiences if I didn't dam before filling--are you going to do lots of carving after you fill?
LMBO! Cake & Football, whoda thought? lol. We've been having some rough times lately..penalties & all...Hopefully Stoops pulls us through like always!
I've done one helmet before before but I can't for the life of me remember if I dam'd or not...I don't think I did because I used a VERY firm peanut butter filling. The oreo filling is MUCH softer so I'm sure you're right.
And yes I will be carving, but it's not really that much. I'm using the sports ball pan.
Dam, dam, dam!!!
Better safe than sloppy.
Good luck!
To dam: Using a #12 tip or coupler without a tip and stiff buttercream icing, you pipe a dam of icing about 1/4 in inside on the top of a layer of cake then add your filling no higher than the level of the dam and then place the next layer of cake on. This prevents the filling from coming out the side of the cake and also compromising the structure of a tiered cake(sliding, etc) You must be careful not to overfill!
Doug you kill me!! 
Have you been joining the ladies in the other thread with the margaritas???
ALWAYS ALWAYS dam. I always dam. Why take a chance of oozing filling.
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