Kit converters are usually additions of maltodextrin, dry malt, dextrose and hop pellets. They do make a diff to a stock can and bag....give it a run and see the diff for yourself!!
Thnks guys - i will try it out - my dad was saying that its probablly just the same as the stout booster and they just want to sell extra stuff but i wont know till i try it out.
Have a good new years eve and leave some brew to drink tomorrow!
bek