thanks for your posts. And yes, i guess i see people around here spouting 300 watt ftp like its a beginner power. I have no idea how people sit on said power. My only recourse is i have beaten people in tris in bike legs with power readings of 275 as an example, and my stages will say 230 watts, yet im faster than them. However using trainerroad virtual power as an indicator, i cannot break that 260 mark. im 160 pounds so no lightweight and hoping a dedicated bike offseason will see me improve. If nothing else i will enjoy road racing season in that tri offseason. I will also be happy though if other things happen like you said, more endurance, maybe improved ability to hold a good run split? etc
W/Kg isn't as important in Tris as W/CdA.
If you are aero, and efficient, and can actually HOLD your aero position for the entirety of your ride, you can easily outsplit stronger riders on the bike.
And as has been said, even if you don't necessarily bump up the FTP that much, being able to hold a higher % of it for longer, and/or feeling fresher coming off the bike, etc -
all contribute to an overall faster race.
3.5 W/Kg is pretty solid, FWIW.
4+ W/Kg and you're talking fairly elite (by Tri standards) bike splits.
, and jog