Hello everyone. I'd like to start some kettlebell training. I'm quite athletic and I've previously lifted weights (on and off). My dilemma is that the only kettlebells being sold, in my area, are heavy. 30kgs (66lbs) and higher. I picked them up at the store and did a couple of reps. They felt alright. A bit heavy, though. I doubt i'll be able to go on for more than a couple of minutes. Thoughts? Thanks all.