Most of my positions are a forecast of price at time. So implicitly a delta-trade in vola.
Also, there are a lot of moving parts to this. A guy trading in delta1 doesn't have to worry about the forward, unless they are short-liquidity (and Px). I have to contend with various decay(s) (drift), as well as stickiness and the general vol-line in indices (lesser-extent, in shares).