Limit number of feed items to X latest ones | CyberSEO Pro | Support Forum

Basically I need the script to ignore feeds "from the past".

The problem:
I save the feed items with post status "pending". Then I manually decide to change post status to "publish" or delete unwanted posts (also remove them from trash).
During the next cron run, CyberSEO pulls again items I was considering as unwanted = deleted. Means, I must delete same unwanted posts again and again.

I thought of 2 possible solutions:

1. The script should only evaluate the very first item in a feed, and then just exit, completely ignoring feed item#2/3 etc.
2. Evaluate feed item date: if the difference to current server time is higher then X, set $post to false. It of course depends if the feed item provides a date, therefore I highly prefer solution 1.

What would be a working solution?