The gaps are OK.   I personally find a 5 wood much easier to hit vs a 2H or 3H.  I carry a 5-18 fww and 4-21H.  Don't carry a 3W because I have a 13* draw driver.

A 3H gets about 5-10 yards more vs the iron. The 5W gets about the same distance as a 17H (2H).

If you ever think about adding a lob wedge, may consider changing wood setup to 17 fww, 21 fww or hybrid and removing the 3 iron.  There are some golf pros that use a 4 wood instead of a 3 wood and some carry close to a 7W (one is #1 on the money list; his 5W is 19.5).

As Lou promotes, you can always compare the Titleist 17-19-21 degree FW and H side by side.  Do you have a distance gap now you  are trying to fill?  I wouldn't change a thing if my distances from the 15 degree 3W through the 4I were consistent now.

In what I refer to as the arms race, the fancy new clubs with "more distance" with the same nomenclature (3 Hybrid) that use less loft and longer shafts - is it the technology or that the new 3H is the old 2H?  One OEM with a 19 degree 3H also has a 43 degree PW.  Eventually you really need a GW to go from there to your 54/56 degree SW.  There are some new technologies, like the slot on fairways from a couple of vendors, but if the loft and length both change, it makes it hard to know which of 3 factors that affect distance (...and accuracy) make the most difference.

Titleist still declares 21 degrees/24 degrees/27 degrees as the hybrids matching with their 3/4/5 irons (they match the loft on your AP2s).  As well as use a 45 inch driver shaft as standard.  Certainly not a 48.  I'm glad Titleist doesn't use numbers, so I don't have to worry if a Titleist 2H is "only equal" to another OEM 3H.  Many can't hit a 19 degree iron, so not only do they have to take out the 2I, they now have to take out the 3I since it is the new 19 degree iron.

Thank you, Gentlemen.  You have not only answered my question, but you have put your finger(s) the source of my confusion.

Fairways and Greens.

NSC

I have another post in work.  Titleist has managed to keep their golf club lengths sane (45" driver, 42" 5W, 40" 21H) and their "player" clubs have had the same lofts for at least 12 or more years.  

I believe that the AP2's have the same lofts as my MP-32's, which were about a degree stronger than the Apex's I played for many, many years.  In both sets, however, the 2 iron was 19 degrees (there is no AP2 2 iron), which is why I assumed that the 19 degree H was a 2H, and was surprised to see it referred to as a 3H (given that 3 irons are generally 21 or 22 degrees). 

Anyway, as Lou so aptly brings out, the critical number is the one on the scorecard, not the one on the club.

Fairways and Greens,

Neil

A BH 2 iron hybrid is 19*.   CPR3 3H is 22*.   Superfast 3H is 18*.  Some old TM 2H are 17*.  BH actually made a 0H (14*).   Titleist and Ping only show lofts. 

TM numbers the 21-24-27H as 4-6 iron.  

I cut the 4/21 1" short from stock length (new length is now 39.5") and had to use a Winn Lite Dri Tac grip to maintain swingweight at D2. 

My standard mod on Titleist woods is 1/2" shorter than stock with a Winn Excel RF grip to maintain swingweight.  Worked like a charm on my 980F fairways.

The AP1 irons are actually a club stronger vs Eye 2 (i.e., the AP1 PW and the Eye 2 9 iron have the same loft; the Eye 2 6 iron is 32* vs the AP1 7 iron being 33*).

I actually had a much easier time hitting an X31 4 iron off the deck vs a modern club.  I believe the 4 iron back then may have been 27*.   I used to hit an X31 8 iron 150 yards way back when, so that would be like hitting a modern PW.  Now the cat is out of the bag why today's golf pros hit 200 yard 6 irons! (I used to hit the X31 4 iron 200 yards back in the 1980s). My dad hit the same X31 PW 150 yards back in 1967 - that is about like hitting today's gap wedges.

Neil

The lofts don't matter, what matters is the distance you hit each club.

If the 19* h fits, then it fits, another loft won't fit.

If the 19* h doesn't fit, then it doesn't fit, another loft will.

What also matters is how well you hit them and how easy they are to work.