Should I go to the retro?

A long, long time ago, I made my first visit to the retrophrenologist. In that occasion, I decided I could do with a bit more strength at the cost of some dexterity. Now I am wondering if I should sacrifice that gained strenght and send it towards wisdom...

As it stands, my current rearrange is as follows:

Constitution 11 Dexterity 12 Intelligence 18 Strength 14 Wisdom 10

More wisdom would imply the following advantages: a highter ma.sp.sp bonus (and therefore, a bit more of the always needed midspace for spells) and higher bonuses in the spiritual skills (something that would make my quest for the Deadly Deamon easier to attain. To get 330 bonuses in banishing, abjuring and summoning, I need now about 352 levels in each. With the new rearrange, it would be enough with 336 levels). It would also slightly improve my dodge.

The setbacks (at least in the skills I use regularly) would be in adventuring.health (ouch! a very basty one! I'd need to climb 65 levels more -up to 400- just to recover the bonus I have now), magic.spells.offensive (here I'd need 23 levels more to catch up), fighting.melee.sword (10 levels here) and fighting.points (29, but then I'm at a quite modest 201 levels, so it wouldn't be much of an effort). And, of course, a roughly 10 per cent increase in burden.

All in all, I feel like I'm not going to make changes, as the lowering of health would be really annoying (I need all the health I can get for the remote future when I start daemon and dragon-casting), and the difference between 333 and 352 levels is a bugger, but doable in 3 skills (on a rough guess, 5-6 millions xp each?). The extra mindspace I think will have to wait for some future and expensive expenditure. Nevertheless, I am open to comments and suggestions from you, anonymous readers, on the topic...

First visit to the Retrophrenologist...

Zorgo the Retrophrenologist asks: Hello Winswand. How are your bumps today? Need any replacement therapy?
Zorgo the Retrophrenologist polishes the chair and checks the restraining straps.
You say: yes
Zorgo the Retrophrenologist asks you: So you would like to get some stats modified... Which one would you like decreased?
Your pair of pale gold crystal bubble earrings glitters.
A delicate sound, almost like snow falling comes from your silver snowflake bracelet.
Squelch.
You say: dexterity
Zorgo the Retrophrenologist asks you: Whooo! Great, so what ability would you like to increase? Zorgo the Retrophrenologist says: Retrophrenology is such a good idea, I wonder why more people don't try it.
You say: strength
Zorgo the Retrophrenologist hums a ditty. Quite tunefully, for a troll.
Zorgo the Retrophrenologist feels the bumps on your head speculatively.
Zorgo the Retrophrenologist says to you: It will cost you A$100 to smash your head into the shape required to increase our brawn at the detriment to your flexibility.
Zorgo the Retrophrenologist asks you: Do you wish to continue?
Your jet black crystal bell bracelet chimes quietly.
You say: yes
Zorgo the Retrophrenologist says to you: Great! I will see what I can do.
Zorgo the Retrophrenologist pockets the money as payment from you.
Zorgo the Retrophrenologist feels around on your head.
A glittering sprinkle of light scatters about the room from your Polythene Pam.
You sit on the operating chair.
Zorgo the Retrophrenologist starts to strap you into the chair.
Zorgo the Retrophrenologist measures your head with a somewhat battered looking tape measure.
Zorgo the Retrophrenologist pulls out a huge hammer and licks his lips.
Zorgo the Retrophrenologist squints and lines the hammer up.
Zorgo the Retrophrenologist exclaims: Don't worry. You won't feel a thing!
Zorgo the Retrophrenologist thumps the hammer down hard on your head, blood and bits of hair spray around the room.
You lose consciousness.
Your fading strength makes you drop 2 Ankh-Morpork royals, one Ankh-Morpork ten-dollar, 5 Ankh-Morpork dollars, one Ankh-Morpork half-dollar, some Ankh-Morpork pence, one Djelian talent, 2 Djelian tooni, 9 Djelian talona and 5 Djelian ptascpi.
Zorgo the Retrophrenologist looks a little worried and checks your pulse, then smiles brightly.
Zorgo the Retrophrenologist cleans off his hammer and smiles happily.
You are unconscious. You can't do anything.
Zorgo the Retrophrenologist says: Another job well done.
Your iridescent scarab beetle wriggles her legs.
Zorgo the Retrophrenologist rubs your head and smiles.
Your Smaug The Small yawns sleepily.
Zorgo the Retrophrenologist says to you: I think you will find that did the trick.
You are unconscious. You can't do anything.
Zorgo the Retrophrenologist pushes your unconscious body off the chair onto the floor.
Zorgo the Retrophrenologist exclaims: Next please!