This has been by far the hardest Raid Boss to land throws.
We did a couple yesterday in between chasing Groudons.
I reverted back to some normal throws just so I could land a few. The curve Ball is more of a challenge to get right on this one.
Up side was my Daughter and Wife came out with my regular crew so they played their own rather than me doing the work.
My daughter caught a weather boosted 2910 100% which I’ve thrown the 37 Rares gained from 9 Raids at it and burnt 5 Charge TM’s to get Hydro Pump.
It’s now her biggest Pokémon at 3492CP.
I don’t know how to get the screen shot off the Android Ph to paste pic.