KR> flaps v belly board

[samantha toner]

Having read the ease of the Belly board construction I am wondering if the 
complexity of?installing flaps is worth while ? I am at the point of finishing 
the stubs and starting flaps. Knowing what you know about?belly board vs flaps 
would you guys?install flaps? Is the?additional low speed lift significant ? I 
am building a standard S Thanks Mark?