Engineer feedback:
Overall the polished animation of pistol is good news, but offhand pistol needs a utility improvement in pvp/wvw as it will always be outshined by shield in most situations, making it the preferred and only viable offhand.
Rapid regeneration coming back is awesome, i really look forward to play around it, some slight change of the superspeed distribution amongst the skill would be better. at the moment he have too long of a duration on heal and tool 1 and basically nonexistent superspeed on gyros. maybe tuning down heal and tool 1 and bumping up the gyro superspeed trait would be an overall improvement.
Holo is pretty much in an ok state at the moment so i agree on keeping it as it is for the moment and see how he fits in the new meta after balance. the only note on this is that i feel like power holo requires to have the explosive line to be effective in pvp/wvw. maybe a slight tuning of some abilities could solve the problem.
The mechanical Genius duration was fine as it was in pvp/wvw, really. maybe you could extend it to 8 sec but no further, realistically a player that know what he's doing will always be able to manage the trait effectively, even at 6 seconds, 10 second makes it too easy in my opinion. the reduced range on the mech auto is good too, it makes kiting the mech worth doing, before players couldn't get out of range in time
