2.5 Routing Loop Prevention - Another Solution?

I fully understand the solution in the guide, but did mine a different way and would like feedback if I would "get the points".

On R6, I set a tag of routes going into EIGRP from RIP.

Rack1R6#show route-map FROM_RIP
route-map FROM_RIP, permit, sequence 10
  Match clauses:
  Set clauses:
    tag 6120
  Policy routing matches: 0 packets, 0 bytes

router eigrp 100
 redistribute rip metric 1 1 1 1 1 route-map FROM_RIP

Then, on R3 and SW2, I block these coming back from OSPF-> EIGRP.

Rack1R3#show route-map
route-map NO_ORIG_IN_RIP, deny, sequence 10
  Match clauses:
    tag 6120
  Set clauses:
  Policy routing matches: 0 packets, 0 bytes
route-map NO_ORIG_IN_RIP, permit, sequence 100
  Match clauses:
  Set clauses:
  Policy routing matches: 0 packets, 0 bytes

router eigrp 100

redistribute ospf 1 metric 1 1 1 1 1 route-map NO_ORIG_IN_RIP

Thanks,