-1exp and level scrolls yeseither of them and SLS nodifferent levels for a reason
Not like there would be any interference since you cant really use sls till you reach lvl 140, also if you do the math 16 level scrolls are the same as 1 super level scroll. But yea, i respect your opinion.
this was suggested before, and not done.
+1, simply make the converted item be untradeable and account stashable only.