Viking ... Know it's gonna' be Super !!!!! : ... our experiences are based on the Air Surfer and positively HUGE Air Surfer that SPFD made and flew ... which led to the 60"Big Horten experiments ... all had no vertical fins and flew GREAT (Really slow floaters) very stable , and flyable (Ask the Whorley Bros. ) Made on the Bendfoam Jig ... required very little power and I eventually powered the BH with a j250 with a C gear.. and got long , long flights ... 45 min +... My elevons required about 25 degrees UP(reflex neutral )) to fly right ... I KNOW yours will be a Great Flyer , with a unique look too!!!!!! ... but watch those birds...either they'll leave or attack ... !!!! We routinely get chased by even the smallest birds when we get too close to the nest ... Momma' Thing !!!!