You know why this disappoints me so heavily. Karmagen was the single best chance to create a first rate unified chargen/advancement system which would have pretty much eliminated almost entirely the primary cost reasons to twink things in chargen. And it was botched so badly :(.
I'm not surprised at that.... when you botch the initial rules write because you don't apply math, accounting, and make larger dicepools cost less than smaller ones. Then give fluff reason for it....
It's hard to fix that later.
You also don't seem to realize that the change from 3x attribute to 5x attribute cumulative is a HUGE change for karmagen. (it also indirectly 'reduces' the cost of skills by increasing that of attributes... while making 750 karma now look more like about 600 karma build then).
Going from 1->5 for a human used to cost 60karma. Now it costs 100karma. W/ a 375 cap. You've gotten a long way away from being able to hardmax1, softmax 5, raise 2 others once. (also ignores that as written, mag and edge also fall under that cap unlike BP). That's not a bad thing IMO (when 3-4 is supposed to be average). But it goes a long way also towards offsetting 'exceptional' attribute costs. Especially compared to BP (as you have less 'cheap' low raises to finance exceptional raises (relative to human baseline, size of pools matters)).
The "But it costs more to raise trolls to sky high", outright ignored that it cost less (just like a human) to raise his other 7-8 stats (base + edge + mag which under BP aren't under the attribute spending cap)... and savings there easily 'financed' his massive, 'must be maxed' stats compared to BP. (at the tune of at 3x attribute at time of writing, and 2karma == 1BP.. all other attributes were roughly half cost to raise to 4. Literally the 5->6 transition was cheaper than BP, 6->7 was cost offset by a single stat raise from 1->2, 7->8 offset by 2 stat raised from 1->2, 8->9 by 3 from 1->2... pattern continues w/ 2->3 raises...).
Glyph:
If you want more powerful characters, then increase the amount of BP/Karma/priority tweak (2 class A's and no class E priority) you do in chargen. The point of the rules as published should be to give a well balanced method for EVERYONE to make their chars.