Because of that GTX980 FTW is worse combination, 980Ti FTW not exist I think... But for FTW you can't install Hybrid, you can't install water block for reference cards and you can't install water block for custom cards because only for Classified are available.
Only Thermpshere as some half water cooling solution.
If someone is not sure Hybrid or water block than best to choose reference and can install both later.
Hybrid is excellent solution... But now when EKWB Predator show up who plan to replace and CPU cooler, graphic card and Predator it's same price for Hybrid or waterblock.