Hey Archie, have you ridden a Russ Short at that length? (If so, please ignore this below!).
This is just my opinion, but comparing the two the Egg will paddle better, be more versatile, and just feels better to surf.
I had a 7'2" R.S. for a while, and the only good surf I had on it was when it was 4-5' (in old money), and just one of those classic days.
If you want it just for those perfect days, then fair enough. Personally, I'd buy that other red 6'8" egg on here instead!