Range Responses of Indeterminate Length: Draft

Hello!

I've written up a draft standard for an HTTP extension that allows range requests to work more effectively with resources of indeterminate length. I've submitted it as an Internet-Draft, and wondered if anyone had any suggestions as to how to improve it, or move it towards standardization?
https://tools.ietf.org/html/draft-combs-http-indeterminate-range-01 <https://tools.ietf.org/html/draft-combs-http-indeterminate-range-01>

Thanks,
--Rodger