This is what am also planning to do. Recently, steem has been on a higher price than sbd. And by then, to do a transaction or conversation of sbd into steem, one needed more sbd to buy steem. But as of now, it's the best time to do the conversation for anybody who has a lot of sbd to convert them to steem since sbd price is on a higher price than steem. I know steem coin will boom upto $100 and the price of sbd might fall again. So it's better to invest now.