nope defiantly not decriminalized, although a recent law that was voted in that makes arresting recreational users the popos lowest priority. But the police came out and basically said that it wouldn't change anything, as in you will still get prosecuted if your caught with any amount.
they should last hundreds of injections and pc runs, ive never had any problems with injection ports wearing out
you can also use silicone to glue tyvek or ez felt to your lids for gas exchange