Interesting, not hijacking the thread but prompted me to weigh my foils.
Now they are still wet, so maybe a little lighter. See below with EVA front and back wing covers on and off. (bloody seabreeze image thing put them side ways, but you get the idea).
Naish S25 1240HA on 75cm Mast and Short Fuselage with EVA wing covers on front and back wings = 3.574kg
Naish S25 1240HA on 75cm Mast and Short Fuselage no covers = 3.386kg
Naish S25 1240HA specs
Naish S25 1400 HA on 75cm Mast with std Fuselage and EVA Wing covers front and back = 3.863kg
Naish S25 1400HA on 75cm Mast with Std Fuselage and no wing covers = 3.651kg
Naish S25 1400HA specs
Again, these wings are a little wet so maybe lose a few grams extra. but pretty impressive

Matt's 4'4" Naish Hover Ascend complete with 1240 HA mounted has a total weight together of = 6.323kg

(WOW BOARD AND FOIL!)
Ride safe,
JB