learn to fish the stuff properly first liam. personally id stick with ground pellets or swim stim. cats and dogs is rated but i found it to be very sticky which is something i cant get along with when fishing sloppy paste.
I made up some green swim stim paste with a little bit of addative in it the other day. seemed ok till I tried to use it, think it must've been too sloppy coz after 30 seconds the float popped up! Easy mix to make though.
I use swimstim and mix it so its very sloppy and sticky, the stickness helps when fishing too islands as when put in the toss pot means that you can ship out quick without fear of his boucing out the cup. Leaves your pole a bit messy afterwards but doesnt matter as long as you have those fish in your net, normally a couple of no.10 on a 4*10 float will see that as the paste sinks the float that final bit, there isnt too much buoyancy pulling on the paste to rip the hook out of it.
Metal what you do is very similar to what andy findaly covered in an article a while back.