^^^^
The "rough" ones aren't rough!
![fighting :fighting:](https://www.mk5golfgti.co.uk/forum/Smileys/newsmileys/fighting.gif)
- They're knurled and consequently much more tactile and grippy.
It's a no-brainer: Knurled!
Knurling is far from tacky and is much more quality 'engineering':
![](https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2FMods%2FCatchTank%2Fscrewtop.jpg&hash=ba44c5b1dfff44813be1843a87b0d89284d59094)
Some you guys are like Magpies - Anything shiney and slightly bling regardless of how well something functions
![rolleye :rolleye:](https://www.mk5golfgti.co.uk/forum/Smileys/newsmileys/rolleye.gif)
[Unless you are running a 'Show' car]