Wheel upgrade?

There is lots of advice I've found on wheel upgrades which has sort of led me to think about buying some Fulcrum 3's. Has anyone any experience of these wheels and what would you say about them? Should I spend the extra £200 on Fulcrum Zero's?
I ride long distance and do 100 mile Sportives. I would like to have a go at club TT's next year.
I used to have Bontrager X lite wheels which I loved but sold with my old bike. The Ultegra wheels that came with the new Madone just don't seem to roll as well as my old wheels and in the last month they have gone out of true twice. I've had them re-trued under the warranty but have lost confidence in them.
I ride long distance and do 100 mile Sportives. I would like to have a go at club TT's next year.
I used to have Bontrager X lite wheels which I loved but sold with my old bike. The Ultegra wheels that came with the new Madone just don't seem to roll as well as my old wheels and in the last month they have gone out of true twice. I've had them re-trued under the warranty but have lost confidence in them.
Trek Madone 5.9
Kinesis Crosslight T4
Kinesis Crosslight T4
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This option might be better for TTs
A
Best Weather Bike - Time ZXRS
Summer Road Bike - Pinarello FPX Dogma
Winter Road Bike- Colnago E1
Being Dismantled - Sintesi Blade
Mountain Bike - Sold them all....
That way you can specify exactly what you want in the way of spoke count, rim profile etc.