I feel this actually. For me, I kinda thought of whirlwinds as like the gateway into more intermediate play. Since that was the case, I basically grinded nothing but whirlwinds for like a month until I'd ruined a dama and was actually pretty consistent with them.
Hurricane/tornado lets say i am wuite advanced player, but this trick is madness for me to do it flow...
Not your normal kendama trick but one I learned at a JKA event a while back. We use it as one in a rotation of tricks to get discounts on our ramen. Looks easy until you put them on the clock.
UFO is prolly the one for me. Looks simple enough, my J-sticks are fairly consistent. Still can't pull off a UFO, haven't even come close.
Stilt to downspike (the downspike part, stilts look as hard as they are.) It looks like it should be so easy because the spike is already right there by the hole but I always have trouble with rotating the tama a little.