For giggles, I got my dial caliper out and measured and compared the 2 wires. Both SPT1 and the of the minis were about .1". There was a little flexing but overall I think they match pretty darn good. I measured some SPT2 I had it came to just under .2". I am going to go with SPT1 plugs. However, I am ordering both sizes since I need them for other things.