I run adapters on all my mods so they get the wear.
So do I...the 510 to eGo/510 ones like my iSticks came with in their kits. Not only saves your 510 mod connection, but also helps prevent scratches on your mod, from tank bottoms of smaller diameter tanks (PT minis, Aerotank Minis, etc.).
FT has them: 5/pack for $4.52 or a 10/pack for $7.56
$4.52 510 to eGo/510 Converter Adapter (5-Pack) 5-pack - chromed brass at FastTech - Worldwide Free Shipping