My 2014 GT does not have a scoop - my 2009 C/S does have a scoop - albeit smaller than the ones on this thread - it is a factory scoop that is Bolted to the hood - not double sided tape.
Unfortunately I think the only way you guys are going to fix this problem is to actually somehow bolt the hood to the scoop - the thermal expansion stresses are too much for the adhesive to hold down. New double sided tape is only a temporary measure.
Best of luck.
2009 Red C/S, 2014 Blue GT, 1969 Coupe 302