The original (white panel) BJ didn't call for filling any of the vias with solder. In fact, it's not strictly necessary even on the later versions. Just provides a little more conductivity along some critical traces.
On your whited-panel version, if you wish, these vias could profit from being solder filled:
- the vias at the inside of each of the three etched inductors
- the via just to the right of D1
- the via just below C22