Thanks for that, Nick.
Of all the "budget priced" rifles, these are the ones that I keep coming back to, but some inside info on internal build quality is appreciated.
I did own a (Turkish) Stingray II, .177, about six years ago. A bit lively, but never played with the internals. The main reason it went was that I was given a tidy Airsporter Stutzen for free. Funds were tight and I was fancying another 97. I did a straight swap for the two of them for a brand spanking new '97.
The trigger was okay-ish, but with the Quattro trigger on the newer models making it more appealing, I think things are tipped heavily on favour of the Hatsan.