Go CCIE Go!! - A Cisco Certified Internetwork Expert

Hi Guys,
I have tried to lab this again and again and my result seem to disagree with the solution to task 3.7 of IEWB lab 13. So either I may be missing something very fundamental as the output from the solutions guide shows that it should work. So hopefully one of you can shed more light on my gaps here.
R1,R2,R6,SW1 ,R3a re originating VLANS 11, 2,6,7 and 367 respectively into OSPF . R5 has adjacencies with R1 and R2 and recieving these prefixes. The question is configure R5 such that it prefers the path towards R1 and only use R2 as a backup.
The solution is to lower the OSPF distance for these routes when they are learned from R2.
*distance 109 150.1.1.1 0.0.0.0 VIA_R1
*VIA_R1 is a standard access-list that matches the desired routes. 150.1.1.1is the ospf router-id of R1. Now, when I configure this way, only VLAN 11 ( 139.1.0.0/24) has the distance lowered to 109 and R5 prefers this path when R1 is available. This is what I expect to happen and it is what I am seeing in the lab, as my understanding is that in the distance command above , 150.1.1.1 has to be the advertising router-id, and not the next hop from which you learnt the LSA. So because R1 is only originating VLAN 11, it seems to work that way, but the other routes are not affected even though they are learnt from R1 because they are originated form somewhere else.
Now, the show command output from the solutions guide seems to show all these prefixes with their distance changed to 109, which is suggesting that the 150.1.1.1 in the distance command would be the router-id of the next-hop router that you learnt the prefixes from, and not necessarily the advertising router.
Can someone open my eyes here ? I have tried to find my own asnwer by labbing this over and over again and I can not reproduce the solution provided, even if I copy and paste the config from the solutions guide as-is.
Herbert.