Personally, I have horrible luck getting stones at all. I've had less than a dozen and still haven't even seen an undead, magic, flying or elemental stone at all.
I'd like the stones purchasable via Justice points changed so it increases the rarity of the pet by one level instead of making them uncommon.
My Uncommon Jade owl would cost me 1 stone to make him rare. My common Scourged Whelpling would cost me 2 stones to make him rare and my poor Minfernal would cost me 3 stones. I'd be willing to spend the 3000 Justice to make my Minfernal rare or 2k for my Scourged Whelpling. Farm for stones for farm the greater available content for the Justice, different paths to the same result.
I'd like to see a vendor akin to the Reforging vendor that allows you to spend something, gold, special other stones, Lesser Charms, Elder Charms, to allow me to change my pets breed. I don't mind rare farming but the fact that My breed 3 rare Rhapana Whelk is so far off from a breed 5 is nuts.
They did it with the 6 million dollar man...they can do it for my Flayer Youngling.
This might be a good thread to start in the offical PB forum as well. I think I'll do that.