Just for grins, did a search and found 37 results for "rubbery".
The method in
Turkey 101 uses the cheese cloth method to crisp the skin.
It's a factor of a couple of things.
1. 250 max on the smaller CS, won't get it done by itself
2. The moisture in the CS's have an effect also.
3. You need to do something to the skin to crisp it up. I've always done the skin separation method for two reasons. It's helps the skin crisp (works on chicken also) as well as allows you to get seasoning directly on the meat. Butter and flavoring work for me. Only draw back is that when you separate the skin, when it cooks it will "pull back" from the neck. I stick a toothpick underneath to keep it in place.
4. The cheesecloth does a couple of things. It keeps the skin from blackening, which some have complained about. It helps put oil on the skin to help crisp and it adds that same oil to keep it from drying out.
So, most recommend, if it's for presentation, work on this method. If it's only for eating, throw the skin away afterwards as it's rubbery and besides, most people don't eat it.
Smokin'