@Darth Omerta if I was you I wouldn't concern yourself with the reports on the 510 because my RX200S has been my daily MOD and using mostly nautilus Mini tanks I remove and reinstall the tanks on that 510 at least 15-20 times a day. Over 2 years of use and abuse at times like when it bounces off the cement but still going strong.
So far the reports Ive heard have been regarding the Reuleaux 2/3 and the Predator. The 2/3 apparently has a really thin wire connecting the 510 and it wears out easily and it seems that the 510 on the Predator is press fit and pops out very easily. I am happy to hear that you've had no problems with Wismec and it does give me some hope that mine will be a good device but I am still weary.