It depends if you want to compare you TP against the Rocketbladez or the tour version.
TP: 4I 24*, 6I 31*, 9I 43*
RBZ: 4I 20*, 6I 26.5*, 9 40*
RBZ Tour: 4I 22*, 6I 29.5*, 9I 42*
As with most new irons the lofts are mega strong to make you think your hitting you 6 iron longer than you old one. The differences DO matter as they mean you need to adjust your wedges and hybrid/fairways to suit so you don't have huge loft differences between you clubs.