Here's a useful video that'll help you mix perfect groundbait for feeding down the edge or moulding around the feeder. Just check out how that Robin Red Liquid disperses on the bottom!
My goto groundbait provider in the UK, unfortunately not the company I use for a decent groundbait riddle. The Dynamite-baits riddle that comes with bait-bucket and useless zip lid, well the welds broke within 6 weeks. However the Preston Innovations groundbait bucket and riddle is still going strong 15 years after I bought it. I love your swimstim groundbait/pellet range so I can forgive you for selling crap riddles...:p