However, they rarely gave reasons for using these strategies, nor was there any discussion of how this position would give the trader an “edge” over a net future or option position.

(it is not clear if this is supposed to exclude ‘today’: in another place the future tense is defined as ‘from 24 hours beyond the time of speaking’ (49)), and a ‘far future’, e.g. nitukaatata, ‘we shall try’, ‘used for actions taking place at some point after a few months, though it is clear that there is some looseness in this’.