Seems to be something that just takes a little while to get used to. When I first go my WRX it seemed really notchy to shift and strange compared to other cars. Now I hate driving a car with longer throws than the REX
Is it one gear in particular that gives you trouble? I found it makes it easier to get into second if you pause a second before dropping the lever into gear and give the synchros a chance to work. Other than that reverse sucks but that doesn't really bother me.