If it's gentle curves, then the bias will deal with all your worries!
I never pin anymore ... just use the hair clips. Just pin it as normal ... hard to know if it's more pins, as we don;t know how often you would pin it normally.
Just watch as you go that it does not get overstretched or that it'll get gathered.
You'll do just fine
AlisonQ ... I know you will!
And I'm anxiously waiting to see THE quilt!