Despiau has different grades of bridges. I use their "two trees" grade and like the wood just fine.
Even perfectly cut bridges will warp if the bridge is allowed to tilt forward; you need to check the bridge once a week or so to make sure that it is sitting properly.
The thin or thickness can make a difference to how your bass will sound, so talk about that with your repairman.
I prefer to supply the bridge blank when I cut a bridge for a bass, just to keep the lines of responsibility clear. If my bridge warps in less than a year and you've made sure it is sitting right, I'll replace it for you.
If you bring me a cheap bridge blank, there's no way I can guarantee it.
