Heaven help me - I've just bought a delta kit :-)

[curious aardvark]

An that's why I use printbite :-)
No it aint cheap - does it work ? yes.
Is it exceptionally hard wearing and extremely difficult to mark ? yes.

The sheet on the flashforge has been in constant use for over 18 months.
Still as good as the day I fitted it. Considering some of the trauma it's been through. I genuinely took a hammer and metal chisel to it to remove the mymat nylon, did not mark it in any way
It's super duper tough !

Because both the delta and flashforge beds are mounted on springs, should the head 'crash', printbite is hard enough that it won't get marked before the springs depress.
Certainly with brass nozzles. Not sure how you'd fare with a hardened steel nozzle.

Totally fixed beds just seem a bad idea to me.