Yh id agree with the Red Sumatra being sandy/gritty, I found a few stem threads in mine lol; probably why its the cheapest one avail there though. I have enjoyed a good few strains from KUK recently tho, esp the White Indo Maeng Da, Red Jeruk & FS Bali gold! Hearing a lot of good about TheWildestK, lets hope we can get some sent our way soon 🤞