Tglhe 999 had a twin cable and most Ducati’s from then on.... it also has as standard zero to hero of over 90 degrees... the 998 single cable is 67 ... I suspect you have a single cable hence its 67 degrees... about as quick as you need
I bet the housing is the same as a 998... maybe the throttle grip tube is different for a more upright bike... see if the part numbers are the same as a 998