Saddler, I find your responses typical of those who are not willing to listen to reasoned debate, i.e. it doesn't fit in with their point of view so try to shut it down.
The voice of reason here is Shaun who was asking for information about how the SP sling could benefit the FT shooter, etc, etc.
If you can't contribute to the discussion in a positive way then I would respectfully suggest that you don't comment at all as some might perceive your comments to be hostile.
Your comments also suggest that you are speaking on behalf of the BFTA which I'm sure isn't the case.
Just for the record I will be taking this up with my local BFTA rep as I feel that the whole issue of an FT shooter being able to correctly use a SP sling does need debating properly.