Kyrie, thanks for the side by side pics of the 2 different weight guns. I found that most informative.
Mergus
You are very welcome.
As an aside, be aware that not all Luis Arrizabalaga (maker mark JAM) model 229 shotguns were built as pigeon guns. About a year ago I came across a JAM 229 on Guns International that had been built as a light game gun.
This kind of thing can drive people accustomed to the American business model of gun making to distraction. Here in the USA we walk into a gun shop, say "I want a some maker model something-or-other", and that's the end of the conversation.
But when dealing with a Spanish artisanal shotgun maker and saying I want a model something-or-other shotgun is where the conversation begins.
Here is an example of what I speak of.
One of the fellows on my forum is in the process of having his dream shotgun made in Spain, and he and I chat as each milestone in that process passes. When he chose the model of gun he wanted and sent a deposit the maker immediately came back and remarked the buyer hadn't specified whether he wanted that model made on a light, medium, or heavy action. That's right; the maker needed to know whether the buyer wanted his something-or-other made as a light game gun, a medium game gun, or a heavy competition gun and couldn't start making the gun until the customer told him what kind of a gun he wanted.