use experimental .debs on Gutsy

[Rakotomandimby Mihamina]

Hi,
I currently use Gutsy on my machine without the possiiblity to use a 
Debian experimental (no virtualisation nor emulation possible).
I plan to just paste the experimental repos on my Gutsy.

That is to have the most recent Zope related packages made.
Is that a good idea? Must I run Debian for that? Use Apt pinning feature?...

Thanks for any tips.