Chase, I know that Titleist does not make 2 irons for the AP1s. I have 712 AP1s 4-9, and the 4 iron is relatively easy to hit. You probably wouldn't have much of an issue hitting a 3 iron, but remember, Hybrids are much easier to hit, and launch the ball much higher. It's easier to hit the green with a 3 Hybrid because the trajectory with the hybrid is like a short iron. A 3 iron is very difficult to hit high in the air and sit the ball on the green. The ball is likely to run once it hits the ground. I know you said you don't hit your hybrids consistently- neither do I. I find hitting my 3 hybrid off the ground more difficult than anything. Just something to keep in mind.

I hear you.  However, the hybrid(and fairway wood) aren't helpful if I can't say with confidence where I'm going to hit them!

I had a 3 iron in my last set(which were almost blades) and I used to hit it well.

Does anyone with experience using the 712U's have an opinion on this?

I have tried to displace my DCI Gold 1-iron for quite a few years now; the 712U hasn't been able to do it.

Something about that particular iron that has kept it, and its 2-iron sibling, in my bag since they were new. The trajectory is not ideal for tight greens, but I can hit them reliably.