i find the Tour ads to be very elastic. i mean this in a positive way.
sometimes i prefer the Tour ads over the 80t super high end shaft offerings.
Has a distinct elastic feel and powerful thumpy kick. DI7, DI8, DJ7 , 9003 etc etc.
as for the 80t models, i have tried fex 75, fex proto 75, crazy noir 7.7 etc etc.
they have a distinct almost glassy feel with a sharp kick.
boils down to preference, budget and flight characteristics.
now you ad boron to the choices and i will pick full boron anyday:)