Perhaps your cables are harder at the start than your springs since the distance between the insides of the handles is closer.
What's the distance between the handles at the closest point for your springs? .. neilkaz ..
On the 4th Feb I did some measurements comparing my Springs with the Oranges and found that the Orange cables pulled out to 3", 6" and 9" were over twice the resistance of my Springs, which answered my question as to why I could pull out 90lbs of Springs but could hardly budge 81lbs of Orange cables ( full-stretch pullweights ). This also proved why the Orange cables seemed to give me more of a workout than the Springs.
The thread is "Latest Workout Results re Lifeline Flexible Handles/Springs". The distance between handles ( modified ) of the Lifeline is 22", and 24" for the red handles with the Chinese springs, so I don't really think that had much bearing on why I couldn't pull out the Oranges, although it was worth considering.
What I must say, is that I'm utterly amazed at the poundages that Paul is hauling ( 140lbs + ) and also considering that the Spenby springs he is using are actually harder to start than the cables ! Paul is working on eight springs at the moment and I'm thinking I would be lucky to pull two out.
Along with Fatman's pullweights, I look at my paltry efforts and weep, but nevertheless I have an ongoing interest with Paul's and Fatman's progress as I'm fascinated as to just how far these two experienced trainers ( who must eat tons of bananas ) will go.
Obviously with Fatman three blue Lifeline cables will be the Big Day, I would imagine, but I'm also looking forward to when Paul pulls out 200lbs on his Spenby's and then goes into business demolishing houses with his bare hands.