Hi Ross, No actually I didn't lose any height and it was level flight into the wall. That track was from my Skydrop another track from my kobo shows level flight see here
https://ayvri.com/scene/49j7dy46je/cjqxh7x6x00013964wvyevc1k When you look at it bear in mind, it is using altitude from baro reading and QNH is out by about 20', i.e. at take off it shows be about 20' higher and at the point of impact clearing the wall by 20'. The critical point was when I was trying to turn left while level with the hill but still out front, the ground track shows a kick to the right which pointed me towards the wall, there was no wing deflation and the vertical rotor I hit at that point continued to put me into the wall despite all attempts to turn left.
I cringed when I watched Waynes youtube flight a few weeks later. He took off in fairly strong conditions with the wind off further to the South. His first turn mirrored mine although he was probably 20' higher due to the increased wind strength. His second turn was almost the exact spot I tried to turn. My advice would be to avoid turning at that spot in similar conditions as the chance of vertical rotor is significant, worth talking through with new pilots.
https://www.youtube.com/watch?v=Qh0dTEa8ZK4Chris