GP,
I have the Viking, which is the same identical saddle as the Puma (also called the buck-cat), just depends who you buy it from as buckingham has different names weather you buy it from Wesspur/Sherrill/etc.
I love it. as for attachment points that are stock (as can be seen online) are a steel clip and steel ring on the belt on both sides of the saddle so you can mount a saw left or right handed, there are 2 soft gear loops as well as several small d rings for a ditty bag or other little add ons. I have also put on a Large cartitool on the right side as there is enough room to get it installed but very snug as it doesnt move around at all.
I would totally recommend it.
-Steven