DYNAMITE Swim Stim F1 Groundbait New for 2018 is the latest addition to the Swim stim stable from Dynamite.Swim Stim is Dynamite\'s best selling brand name so it seemed logical to add a unique F1 formulation.Light and airy texture, it is a sweet fine mix which just screams carp during the less productive months.It should draw wary fish into your swim WITHOUT overfeeding them.Also available are low oil light coloured 2mm pellets in the same award winning formula.The pellets and groundbait should work hand in hand.