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you will be automatically enrolled to the sbi program if you dedicate a share to somebody or if someone dedicates a share to you. So it has not to be me.
But if you want a sbi deal with me let me know. 6 shares (I buy for you) for 5 shares (you buy for me) would be the maximum right now. If you'd choose less there can't be a bonus in shares any more.

5 share worth of 5steem right?

yep - for every STEEM you send to @steembasicincome you can dedicate 1 share.

Ok got it... .. let see how it's work soon.. when I sponsor you..