Just adding what I've seen from just a little testing of only Lightning so far on the PTS. This is from the perspective of a PvEer.
Firstly, a small QoL improvement, I feel it would be better to keep the cooldown display of Volt Rush consistent, i.e. use a horizontal line traveling upwards to display the cooldown in order to keep things consistent, since we've been trained to look for that in SWTOR, rather than the clock visual which it uses at the moment. Difficult to tell whether this is just me or others would like it too.
Secondly Volt Rush seems to be massively underperforming. Calculating values (for lightning at least) shows that 3 volt rushes is worse DPS than simply 3 lightning bolts. Even with the 3 stack set bonus, the DPS is now almost the same, rather than better.
I feel this calls for a slight increase in DPS, more damage from stacks, or some other gimmick like ignoring armour.
Another thing which could improve it (albeit make it harder to use) would be to prevent 2/3 stack volt rush from consuming the stacks. Due to the cooldown, this allows 2 fully buffed volt rushes to be used. Even now, this is still not better than spamming lightning bolts, unless the 3 stack set bonus is applied.
Finally I feel the Convection Burst tactical (3 convection stacks from force speed) should have a slight change. From my testing, it appeared that the 10% damage boost was only applied if the convection stacks were used, i.e. thundering blast only received that damage bonus with it consumed all 3 stacks. This was hard to tell, so I am not 100% sure, but it is what appeared.
Since we can already cast Thundering blast whilst moving, the instant cast (for PvE) isn't so helpful, but if the damage boost is applied when any stacks of convection are active, this becomes a lot more useful, and fun to try to manage when you pop force speed to get 3 instant bolts plus a damage boosted thundering blast. Thus: desired change thundering blast receives the 10% damage boost whenever you have any stacks of convection.
