El Dorado Hills, CA
said by EG:Agreed, and a -3.5dB leg of a splitter would bump the downstream right down to a nominal 0.0 or so, while giving more room for the upstream. May even pick up that 3rd US channel in doing so...
There isn't very much wiggle room left for the upstream power..
*edit* Assuming of course the OP's CMTS supports 3 bonded US channels