TAV driver springs???

#1
I ordered a pair of blue and a pair of white springs for a China TAV driver. The white springs are longer then the blue, and don't seem to fit as tight. Is that the way they are supposed to fit??? The factory springs are even shorter and fit a lot tighter. I was trying to get 2600 rpm engagement with zinc weights. The old springs was giving me about 2100. I havnt put it together yet to see where a blue and white would land me. Thx
 
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