Runescarred Berserker + Reserve Feats, yes, no, or maybe?

[Yogibear41]

This came up in another thread. Can a Runescarred Bererkers runes count toward activating reserve feats?

For example if I have Polymorph Runescarred onto myself and ready to use/cast, can I activate and benefit from the Minor Shape-shift reserve feat?

[Optimator]

No, they're more like wearable scrolls.