I have the Maxima (love the feel, forgiveness, distance is still TBD as I have only hit range rocks and haven't had a chance to play - waiting for more equipment to come in ;) Just ordered the new CRZ-450 (really, based on Craig's review - thanks Craig for a good write-up and my wife thanks you for me having another club to play with ;)
I am sure it won't be long before I try out the S-031 :)
Will do a full write-up as well on the Maxima v. CRZ-450 once I get it. The cool part, both will have the same LY01 6.9 shaft in them.