The measurement method hasn't changed. It's still "wingspan divided by 2.5. To correctly shoot a 34" draw a person would have to have a wingspan of about 85". Wingspan is often very close to a person's height. So, to have a bow with a 34" draw fit correctly, or nearly so, then a person would have to be a little over 7' tall. This probably isn't the case for you and if you are like 80% of shooters then you are shooting at least 2" too long---at least.

Now to answer another question. If you must have a very long draw bow then look at what Martin has to offer. I think they have a couple bows that will go as long as 36" draw. The RazorX/Elite or possibly the ShadowCat/Elite comes to mind. The SlayR goes to 33".

There are others, of course, but you just won't find them hanging in shops. A 34" draw is maybe a one in 10,000 type of thing that must be special ordered.