That's good to hear. I don't have any other specific requests - for me it seems impossible to know what will work on my problems, so i just try things at random to see what works!
I don't know the architecture of your project, but is there any way it could include NLopt, and so make all of its algorithms available? Some of them could be useful, and i doubt it's a good use of your time to reimplement them all from scratch.