Question about HxC, Amiga, Bootselector and Jumper Setting?

[Retrofoxy]

I am building a Amiga 500 with build-in HxC as DF0:
It will also have a Boot selector switch to boot from a external drive as DF0: (so the internal HxC will be adressed by the Amiga as DF1:) to boot from real disks too.
My question is now: Could there be a problem with the HxC and how should I set the jumpers? Is it ok if the jumper is set as "use as df0:" or should the HxC be jumpered as Drive A (df0:) and Drive B (df1:) ?
Thank you.

[Jeff]

I am building a Amiga 500 with build-in HxC as DF0:
It will also have a Boot selector switch to boot from a external drive as DF0: (so the internal HxC will be adressed by the Amiga as DF1:) to boot from real disks too.
My question is now: Could there be a problem with the HxC and how should I set the jumpers? Is it ok if the jumper is set as "use as df0:" or should the HxC be jumpered as Drive A (df0:) and Drive B (df1:) ?
Thank you.

mhh "use as df0:" only i suppose.