Glad you're enjoying the Axe/Bio! Such a beast combo. Some questions on this:
What about your Claws/Stone makes you like it more than your Claws/Energy?
STJ/Rad seems super synergistic. Do you feel it is lacking overall or just not as fun?
Lastly, DM/Shield I think is largely considered one of the "OG" optimal Scrapper combos. Similar to the question above, do you feel it was lacking in your experience or just didn't have the same fun factor for you?