Add hydrogens before MS in DOCK?



Dear CCLers,
 I am little confused after I saw "Docking Task Flowchart". It is said
 before
 "Grid" we need to add hydrogens, How about before "MS"? If
 hydrogens are not
 there, the molecular surface is not correct. So we need to add hydrogens
 before "ms" or "dms", am I correct?
 The surface we get from "showsphere", what is its' format? How can we
 "SEE"
 it? Is it different with connolly surface?
 Thank you for your attention and have a good day,
 William
 -------------------------
 William Wei
 Faculty of Pharmacy
 19 Russell Street
 Toronto, ON. M5S 2S2
 Tel: 1-416-946-8469
 Fax: 1-416-978-8511
 Email: william[at]phm.utoronto.ca
        william.wei[at]utoronto.ca