Firstly, I just want to say thanks for all the fab info. I was just playing around with my touch and somehow it bricked itself.

No idea what I did, but Kubrick fixed it right up again

.
I'm now trying to get custom screensavers back. I've managed to install the simple screensaver hack from
https://yifan.lu/p/custom-screensaver/ and i can indeed get custom screensavers. But it seems like the ability to hold the previous screen state (which as a slow reader is really valuable) seems to have gone...
I installed the yifan one, rather than the one from the front post of this thread, partly because installation seems much easier, but also because screensavers are really all I need, and installing jailbreak, KUAL, MRPI
and a screensaver mod really seems like a lot to install for such a little thing.
Is all the additional software really necessary?
Will it even revive the ability to hold the last screen state?
Cheers!