Frank. you have to be a bit flexible with the term "draw length". It is typically measured at the front, or "back" of the bow... Yes, confusing. Think of it in these terms, if you put a bamboo BACKing on your bow...where does it go... anyway, draw your arrow and have someone put a mark at the point it goes past the back of the bow, or, put a spring type clothespin on the arrow, near the end , and draw it. It should reposition itself by butting against the back of the bow, to tha same place where your friends mark should be. That is your draw length.
The reason I said to be flexible is that, if you are shooting a longbow that is pretty thin in handle....this length may be...say 28". If you now grab a recurve with a beefed up riser and that same draw might scale 29" or 30". Partly due to the added thickness of the riser and maybe even due to a different grip (high wrist / low rist etc). For that bow, your draw is longer. Add on to this measurement an insurance gap of maybe an inch for broadheads and your arrow length may be 31", with your draw length 30".
The rest of your statements sound correct, as far as draw weight for Ron's bows.
ChuckC