remastersys not in testing repos...what to do?

view full story

http://crunchbanglinux.org – I'm getting fairly close to where I'm ready to make an ISO of my modified #! installation -- and then I found that remastersys isn't available in the waldorf/testing repos (scratching my head...).  I did find that it's in the stable repos though, but I'm a bit hesitant to mix stable and testing repos out of concern that it may screw up my system.  Is this really safe to do, even though it doesn't sound like a good idea on the surface?Also, does anyone who's ever used remastersys know if it gives you the ability to customize how the GRUB screen works (HowTos)