In "most" home scenarios, Jumbo Frames will provide little to no benefit. Jumbo Frames is all about reducing CPU usage, not increasing network throughput. 1gbps is 1gbps. You should be able to max it out assuming your network is setup correctly, and is functioning optimally, regardless of the packet size. Your CPU usage may be higher with the standard TCP packet of 1400 bytes, but so what? If you can't max it with standard packets, 99.99% you won't be able to max it out with Jumbo frames either.
Look into your source HDDs, target HDDs, NIC cards, switch, router etc before playing with jumbo frames. Those are way more critical than jumbo frames.