you may as well of used myn name.PMR 09 every time.
The thing is with the ION, is that you can easily mess it up (not permanently) when putting the upgrades in yourself, such as the QEVs. Yes, it only takes a couple of quid to buy new hosing to fix, but its a pain.
In my experiance the IONs are great markers, but they always seem to mess up and start leaking.
In my opinion you're much better off just going straight with the PMR 09. I think it looks better too.
LOL
side note,
dont by smart parts stuff.