Redistribution Fun Part 2

So I came up with the other redistribution fun and gave it a try in my lab.  I got full redistribution and full connectivity.  Nothing tricky.  I followed iPexpert's advice and since there is potential for a loop to form, I created the following route redistribution on R3 and R10.  Routers R2 and R9 have something similar

router ospf 1
  redistribute rip subnets route-map R2O
!
router rip
 redistribute ospf 1 metric 3 route-map O2R
!
route-map R2O deny 10
 match tag 110
!
route-map R2O permit 20
 match tag 70
 set tag 70
!
route-map R2O permit 30
 set tag 120
!
route-map O2R deny 10
 match tag 120
!
route-map O2R permit 20
 match tag 70
 set tag 70
!
route-map O2R permit 30
 set tag 110
!

Without the route-maps, no loops formed and the route-maps were to guarantee this.  The only issue I saw was sub-optimal routing, which I will get to another time.  This is so that I can solidify in my mind the way to redistribute.  Thinking that I got this somewhat.

While I did this scenario I came up with another one to try.  Probably won't be able to lab it up tonight but I will try to this week.