Corim will get to high levels the long way and then blitz your puny magicians into oblivion.
It occurs to me that the correct approach to the act of selling one's soul is to first accumulate sufficient value that you'll actually get a good price for it.
Consigning yourself to eternal pain for a finite reward is obviously pretty stupid, but if you can convince a Demon Prince that your talents would make you an excellent or even invaluable subordinate, you can make a pact entailing a power boost now, and a job offer ascended to minor Demonic Nobility upon death.
A Flock of Sheep.
A Pack of Wolves.
An Inconvenience of Heroes.
I find Weaponmasters work best as 'base' classes for a switch-plan until level 5 or so, at most. Even by then, you're down 75 MK on someone who was a straight fighter all that time (and have only just achieved 'Use of Ki'....).
On the other hand, Weaponmasters - if created properly - work just fine for what they were created to do.
They're not army destroyers.
They're not the guys who get the big kill-count.
If you're okay with that, then a properly set-up Weaponmaster is the guy who eats the 'Party-Smashing Blast' that the big bad guy sends out when he's righteously honked off, gets up, dusts himself off, and then says 'Let's go.' while the rest of the party is struggling to reattach lost limbs.
He may not be the best killer, best destroyer, best crazy-good warrior in the group, but he's darned-sure the Last Man Standing.
Gm's often forget that Weaponmasters get Wear Armor as part of their class. It's something special to them. They've taken a loss somewhere else to get that (same with straight fighters and paladins, to a lesser extent).
Hence, Weaponmasters deserve the opportunity to keep finding better equipment. To them, that's as much a part of the character as the innate abilities of a Technician, and just as necessary for their success. A 'properly' kitted out Weaponmaster (ie, in accordance with their level and skill) is a horrifying foe.
1. 20 DP if you're changing to Freelancer, Freelancer changing to anything else, or if it's in your class type (ie, warrior to warrior type, like Acrobatic Warrior to Weaponmaster).
2. 40 DP if it's mixed class that shares a class type. Technician (Domine) to Tao (Domine-Warrior) is the usual example.
3. 60 DP if it's to a completely different class type (ie, Fighter to Wizard).