Darren Lebner
TVWBB All-Star
I do wings on my Genesis all the time without GGs.
Everybody's been doing wings on regular grates since the dawn of man.
I found using the GGs guaranteed even consistent heat from one end of the grill to the other. In addition, the surface temp even on the lowest gas setting is higher than with standard grates. This plus the semi-griddle effect (haven't reversed the grates to the griddle side yet), all add up to something I find better enough that standard grates to justify the investment.
I always try to slow grill chicken. I didn't time it but I think the wings and thighs I did the other day cooked faster due to the higher surface temperature but with no negative consequence to the quality of the cook, i.e., the tenderness of the meat. This was true for a small beef roast I did afterward.
There's something in this entire mix which works for me.