B3 to KB3. They just simple change the coin name and reduce like x1000 times. Nothing new ( based on my research, i may wrong … )
Sprouts+ is different coin than sprouts. Sprouts based on peercoin, sprouts+ based on ETH with POS ( which is new ). I don’t give a advice in a investment ( actually i never do it ). You must decide it based on your research.
Personal, it is hard to decide buy now or later. The price of it is high now. You will also lost 40% after swap. But if you can mint the coin and there is enough time, you can make up some % lost here. The price of sprouts+ after swap is unpredictable. Since the coin is POS coin, people will need to hold in the wallet in order to mint it. The 8% mint rate per year is not high either so we may not see many coin in the market and the price may high. But if the whale decide to dump it or something is not going well, the price will low or even unrecovery. Who knows? This is a math we need to resolve before investing anything.
In the end, there is a important thing in cryptocurrency investing. It is the faith. I believe in sprouts+ and its dev team. That why i bought the coin when it was still dead and hold it till now ( look at the price of sprouts last year and you will understand what i mean ). I’m able to earn some profit now and hold almost for swap. Of course, I did enough research myself before put my faith into Sprouts+.