I tried the double apple today and I have to say I really liked it. It had a complicated blend of natural apples, something flower like and good quality tobacco in the background. The apple flavour wasn't as assertive as I like but very good nonetheless. The only downside is that it only lasted about 30 minutes. It seems that it's short lived flavour is a result of the shisha being too dense so i'll try adding a bit of glycerine when I smoke any additional samples. I've found that in terms of heat management and whole patterns you should treat this stuff like Nahkla.