i have an adversion to useing sanding rails (mainly cuz im too lazy t obuy one) so i always have dips in the wood and i dont like my heat gun so i use only the iron and it digs int othe wood. oh well. it will fly, thts all that really matters. im thinking my planes will look better if i start using fiberglass nad leave the monokote the ppl who are good wiht it, wince i can paint well