Deluxe Memory Man RI (Big Box) Calibration

[Ice-9]

Just to reiterate the original problem, and as Federico has also said, Bias has nothing to do with the delay time.

BUT if you do put in the larger 3005 BBD's in the empty ic sockets to double the delay time over the standard setup then those will need the bias trims set correctly.

[Fender3D]

... And assuming someone has an osciliscope or a suffucient frequency counter is asking for a bit much 

Many modern DMM have freq counter on them...

BTW
matching 2 pedals without the proper instruments, randomly turning trimmers is asking for a bit much IMO

...if you do put in the larger 3005 BBD's in the empty ic sockets to double the delay time over the standard setup then those will need the bias trims set correctly.

+1
3005's clock pins capacitance is very high, it might load too much 4047 output... but it's worth a try...

[Ice-9]

3005's clock pins capacitance is very high, it might load too much 4047 output... but it's worth a try...

Good catch Fender3D, further thought might be needed to get it to work, Mark Hammer recently wrote a very good BBD article and I'm sure this was mentioned, a very good read on BBD chips.