It’s just more precise work to do it right. Idiot working upstairs at my parent’s house untwisted 3" before terminating jacks. And that’s why those jacks only get 100Mbs. I’m going to have to re-terminate all of them, and have been saying that for nearly 30 years now! Thank God they didn’t terminate all the jacks so I’ve got a shot at doing those right. The ones that were terminated correctly will iperf 700-900Mbs, so that’s pretty good considering there was no gigabit standard when the wire was installed and was the only 400Mhz rated wire on the market that cost us 2x as much, but was a great investment. If 2.5Gb/5Gb runs over it, that will be pretty awesome. We put 2x ethernet and 2x coax in each room and still have areas that were underserved. 2x of each on each wall and ceiling is the only way to go.