i tried spray basting when i first started requilting 8 yrs or so ago. and could not get it right. using the board method, and using spray basting might work. since everything is being spread out very smoothly. might try that and see if my 8 yr old spray basteing is still any good. have yet to use the boards. but the next time i intend to use that method. the last 2 i took to a quilter.