The +4 Strength dexterity and Constitution bonuses for Tensers are currently enhancement bonuses which makes them pretty much useless as everyone of high level already has enhancement bonuses through items. I suggest they become a type of bonus which stacks with enhancement bonuses.
Yes it also makes your BAB equivalent to your level but this is widely available for 1.06 mins with a cheap divine power clickie. And the penalty of not being able to cast any spells at all is so severe you should at least gwet something for that.
This would change Tensers from a spell no one ever ever uses to a spell which MAY be of situational use to a small number of builds (most especially my gimpy fighter/wizzie ofc). "Will I cast tensers? But what if I need to recast displacement or haste???"