You might end up with an abundance of good bud and, by comparison, holding on to the fan leaves may not be what you want to do with your spare time. My values about fan leaves have changed over time. When pot was virulently illegal, any part of the plant was worth a look. But at least here in Oregon, hanging on to fan leaves seems like a hoarder's dream. Growers like myself can have an overabundance of high density pot by not even growing the legal limit. And the pot stores are far more plentiful than taverns. But your buds look good, and I suggest that you keep the sugar leaves on the bud. Those friends should have trichomes from mid-leaf inward, so you know that there's plenty of THC all throughout the leaves. Good luck and stay safe.