Hi Bryan! 

May I ask you to take a look at my PR to your double-conversion library?
I’ve made it about six months ago and sent you an email. A few days ago I updated it.

In the PR mentioned above I’m adding several things which need your attention:

    1. Conversion to bytestring and text builder.
    2. Conversion of Float (using type family, but without performance degrading).
    3. More benchmarks.
    4. Update of the original double-conversion library.
          Now a bunch of 20k doubles is converted to strict bytestring in 5-8 ms using bytestring
          builder instead of >200-300ms using just bytestring.

Cheers, Rinat