Presenting floaters

I had a very frustrating few hours fishing floaters on Saturday.
The swans were a pain in the arse, but the most frustrating part was
watching the carp take all the freebie's and my hookbait being left well
alone!!

I was using dog biscuits that I had flavoured with Liquid Molasses, mounted
on a hair of 4lb Shinobi hooklength to 6lb Maxima, 4 feet from the
controller float.
I lost count of the number of fish that started to rise to the hookbait but
turned away, only to take some freebies under a foot away!

I tried swapping to a 3lb flourocarbon hooklength, but this just sank and
pulled the biscuits right next to the controller. Hook was a PR27 size 14, I
tried dropping this down to a 18. I put fresh bait on the hook every 10
minutes. Tried half a biscuit.
Nothing I did made any difference, hookbait remained untouched - while the
freebies were sucked down with confidence.

I must have got through nearly a pint of biscuits over the course of the
day, with no fish hooked!


What can I do to improve my presentation??

__
Matt