Woodleigh solids are steel-lined, do not obturate easily, and stress your double more than softs. If you need to use solids and decide to use Woodleighs, use as few of them as possible. Do like the regulators do - shoot 2 to see if they hit the target, then only use the solids in the heat of battle against a herd of charging elephants. The vast, vast majority if your shooting should be with Woodleigh softs, or monos which engrave easily on the rifling (i.e., TRUE driving band solids like NF and GS).

The above is of course IMO and others may have divergent viewpoints. When it is your $30K double on the line, you make the choice.