IM taper/last 2 big weeks question

fatigue usually cleans up pretty quick, so I wouldn't add to the taper. everyday you have to train is another day of fitness. If there's no fitness or not enough volume then you would want to shorten the taper as there is less for the body to absorb. so I would stick with the plan.

race day might surprise you. so much of an Ironman is execution. The wiser you might beat the snot out of the fitter you.

good luck.

Like what TJ said, wouldn't extend the taper. If you're having a lot of trouble completing workouts currently take another look at your workout schedule. Are you getting in decent workouts along with adequate recovery? One more rest or easier day now may help quite a bit towards performing workouts over the next couple weeks if the overall load is really getting too big. And be careful of overthinking it regarding all the work you've done in the past. Build off the fitness you have now, and do so with the type of event that's coming up in mind. So don't fret about not being able to everything you did leading into the previous races, but do use those experiences to help build up what you can off what you have now.

That experience in race day execution may help a lot. You have experience in being out there for a very long day. You may not go as fast, but remember that. Use the experience to help keep your effort in check. Push too much up a hill? Ride easier than your average for longer to recover. Unsure if you did? Play it safe and ride a little easier anyway. Use that experience to figure out both when to press and when to back off. Keep watching your nutrition & hydration. Identify issues coming on sooner, slow down and do something about them earlier this time. Have the confidence to do what needs to be done. Sometimes that may be to keep going when you want to stop, other times that will be backing off so that you can keep going.

You can't rush IM training and you can't cram for it. Your fitness is what it is given your year, now be wise in your last bit of training and tapering but more so on race day pacing on your paces this year not based on prior years.

Great race day pacing advice already given above.

Are your current workouts to much given your training this year? If so back off and do them shorter or easier especially on your runs. Maybe consider a run/walk strategy and use that in your last couple longer runs to see if that makes a difference. Most folks run/walk an IM run and planning and executing it may make a difference between run/walking whole run vs running and then walking last half or more of an IM.

For me tapering is longest run, then bike and swim the least.