Just spent 3 days in Mallorca with these 160mm rotors including descends down San Salvador monastry and Sa Colabra mountain. Both brake calipers are Juin-Tech ETFs with SwissStop 27 resin pads (Yellow).
The rotors did not warp or fade under extreme descending for both cases. Also there was no brake squeal probably due to proper alignment helping out. Braking feel was absolute and sure, firm and responsive. Though not a great descender, it gave me immense confidence to deal with the very long descends, especially from the top of Sa Colabra until the coast line.
These rotors held true and performed so well that I ordered 2 new ones for the next replacements.