Trainer advice

Bought a Tacx trainer at the weekend. Having never used one before not sure how tightly the roller should sit against the wheel. The photo below is how it's set up at the moment but this seems very tight. There are two adaptors which can change the position of the roller but one takes it completely clear of the wheel and the other way to close. The wheel is 700 mm so it's a standard size.
Is the below how it's supposed to be? Any advice greatly appreciated.

You only need it tight enough so that the wheel doesn't spin ON it. ie. you're not losing traction between the wheel and the roller.
This will happen now and then with high power output (esp. if you're an adonis like me).
It looks a bit tight to me but not sure on your tyre pressure.

There's some calcs out there about time taken for wheel to stop from a known speed. e.g. 15 seconds to stop from 20mph = correct tension.

Don't know them meself, I follow the hippy rule of thinking on this.

P.s. Consider a conti turbo tyre - it'll last forever (well, nearly) as you'll find your proper tyres get flattened off quite quickly.

Just been messing with it, you can adjust it, I was being a doofus (although it doesn't mention the adjustments in the instructions to be fair). Cheers anyhow.

OK, good you found the adjustment- if you run it hard and or fast and/or for long like that with the tyre deflecting soooo much you will cook the tyre much faster.

Trainers tend to give road tyres a bit of a hard time anyway, best if they are just contact enough to not slip with typical training loads. Trainers are a crap place to do snappy starts and sprints anyway...

I'm working on my barspins on it.

I can do really good trackstands on mine…