federation seeds got shut down a long time ago, and one of the previous breeders from federation started up Next Generation, prolly one of the best seed banks around now! never grown any of those strains that u mentioned but mango yields quite a bit and island sweet skunk from next generation is suppost to be super sweet. I have some DYNAMITE from next generation, and its got pink and purple hues, just like the description! take a look at sensi seed bank, dutch passion seed bank and BCSB! they might have some strawberry cough and cotton candy.