GNB suggestion: Could be better

[firstc043]

I've played a lot GNB during Shadowbringer,even some high-end duties,and I love the changes of GNB in Endwalker,Heart of Corundum is perfect,Double Down also very good,but there are still something uncomfortable:
1. Problems about the Cartridge:In Shadowbringer,GNB can perform Gnashing Fang combo and complete 60seconds' damage burst.But now,for we have Double Down,the skill mechanics of GNB goes wrong.THAT is:we might not be able to carry out the whole damage burst just because there is no enough Catridge for some reason.
2. WHAT's more,Gnashing Fang combo will have too many abilities to put in,image thatne GNB player wants to maximum his damage only to found he has to dancing his fingers like a MCH.Because he need to put everything into the No Mercy period and Gnashing Fang combos.
3. Therefore,I have two adjustments method list below:
3.1 Reduce Bloodfest's CD time to 60 seconds,also reduce Cartridges get from it from 3 to 2.Also,let Sonic Break share a same CD time with Bow shock.
3.2 Increase Bloodfest's CD time to 120 seconds,also make Double Down can only be executed when"Double Down Ready",which triggered by No Mercy now,and lasts for 30 seconds.
4. IF we set GCD time for near 2.4s,while overlapped using of Gnashing Fang combo and Blasting Zone,we cannot use Blasting Zone immediately after Abdoment Tear,therefore the action time of Blasting Zone will influent weapon skills to be cast properly.
5. Last,let's focus on Rough Divide,which is a skill made to handling the accident occasion,e.g. A sudden movement requiring in high-end duties.
Bringing charges to skills makes player can cast whenever they want before fully charged. Yet gap closers are supposed to keep recasting while stll available. To keep it recasting all time long, we cast Rough Divide before the second one charged, which makes it unavailable for seconds. Compared to Onslaught of WAR,This is quite unfair so we want make maximum charges to 3.
Hope this thread is not too long for reading.