Electrically they are the same thing.View attachment 21508
I use a 108” whip on 11 meters (not a 102” whip with a 6” spring,) I have found that the 108” whip noticeably out performs a 102” whip with a spring. I have attached a pic of my 108” whip. The 108” whip isn’t known to the masses. Most operators go with a 102” whip with a spring as many aren’t aware that you can get a 108” whip.