Putting a bow to spirocores on certain basses can be a real problem. My plywood bows nicely with either mittels or weichs, but the old flatback has had a bad wolf tone, making anything around the open A string difficult. Until now.
Aluminum bridge adjusters - worked for me
Last night I adjusted my string mix back to a mittel E, A and D with an Olive G and got back some magic. Pizz is exactly what I want and arco is very manageable.
Really, this well-cut, Mirecourt bridge almost killed off the wolf tone. Dunno if it's due to a better proportioned bridge or hardened wood or whatever, but it's all good.
Thanks to JazzMan for mentioning his experience with minimizing wolfiness by using an Aubert Mirecourt bridge.
To anyone considering a new bridge I recommend getting the best. It's worth it.
The regulars here have seen me experiment with many different strings in an effort to have the perfect pizz string with decent arco response. Everytime I put the spirocores back in the drawer it would only take a week or two to miss their pizz magic and go back and throw them on.

Getting a decent arco tone on them is finally a nice relief.
Anthony, the weichs do bow a bit better.