Iron replacement: which hybrid correletes to which iron?

As you can see there is not a direct correlation.  Generally does the 19* or 21* replace the 3 iron?

                                                                                                             21* or 24* replace the 4 iron?

                                                                                                              24* or 27* replace the 5 iron?

AP1 specs.

3 Iron .245" 20° 39.00" 60° D2  
4 Iron .220" 23° 38.50" 61° D2
5 Iron .195" 26° 38.00" 62° D2
6 Iron .170" 29° 37.50" 62.5°

D2

Hybrids spec:

17° 117cc RH/LH 57.25° 41"
19° 117cc RH/LH 57.5° 40.5"
21° 117cc RH/LH 58° 40"
24° 117cc RH/LH 58.5° 39.5"
27° 112cc RH/LH 59° 39"

Joseph,

You may tend to hit them slightly further, but the 3 iron is replaced by the 21* hybrid, 4 iron replaced by the 24*, and 5 iron replaced by the 27*. 

Cameron

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