I ride a 6`4 fish and I'm going to Portugal and France with a friend who's little experienced in surfing (basically surfcamp and was able to surf green waves down the line with the funky foamie minimals they use).
He said that he likes the shape of my board and wants to buy a similar one, so I decided to give him a try on my board when we're there (if theres no similar one to rent, I fear so because all the cheap stuff they offer in 2nd hand is patched-up and the rest BIC). Thats the background.
Is it possible to proceed on this shape at his level? (Notice the winger)

He's 175cm, 70kg. We're both active Judoka so theres quite good strength and stamina to paddle (I'm fine with paddling, so should he)

I reckon itd be a challenge, but can not decide whether the idea is okay or total bullsh*t

any experience?
greetings from europe