I totally get what your saying most of the ssh I've grown have that effect. It's hard to describe almost like taking a benadryl, too strong too lethargic with a burn out after effect. Im guessing from the skunk side bc I hate skunk it gives me a headache. But I've also found some incredibly good ones too with that classic dutch incensey vibe. Ssh is very hit and miss for me, but for raw potency it's hard to beat.You can find, and I did find some SSH plants with a super clean high, but they were not that good and the ones that were all had an element of what I call the dirty high.
It's not like I am anti-stone, as Colombians have a mix of a high and stone in their affect.
I have tried other Dutch Indica and non-Dutch indica lines and non had that type of affect.