The threads on my vamo are pretty much done for so I am hoping to replace them. I have seen a post where someone used a ego-510 adaptor and then machined a washer to the bottom of it to fit in the top cap, unfortunately I don't have the resources to do that. I also saw a uk shop which sells the top cap with the connector but from the uk it just isn't feasible with shipping to replace the top cap (may as well just get a new device). So my question is is there any vendors who sell either the top cap or the connector. Or is there a specific adaptor which could be used in place of the connector without modification?