[YaYa123]

I'm going to try cooking my turkey upside down...that makes sense...and I"m still going to baste that bird with mayonnaise, the secret to a beautiful brown crust.

[ProudVet77]

As pointed out by another poster, if you use a V shaped grill it will leave groves in the breast. A way to solve this is to use small cookie pans on both sides of the V. Or you can prop the turkey up with crumpled tin foil balls so it rests only on the top of the breast. It's worth the effor. The meat is so much juicier. Also the stuffing flavor permeates the breast meat.
One last thing, be very careful turning it over :)

[kimchi lover]

I have been cooking my turkey upside down for a while now but I always flip it breast-side up after about two hours so the skin has a chance to crisp up.
Do you leave it upside down the whole time?