A few thoughts, noting this is already in the GPU availablity thread.

1. Look by segment, and not by route.
2. You will rarely find R on popular routes.
3. A pseudo-proxy for R is IN. If the seat's available in Saver Business, it's most likely in R. Then you can search via award calendars.
3. If you have 12 GPUs this year, you're above 150K and clearly a 1K.
4. But if you are that high and a GS, a totally different set of circumstances exist.