[Dynamo]

both WE and WA have their own issues that have been left unresolved, either by them selves with different "updated" releases, or by 3rd party after market manufacturers.

the WE's nozzle's faux bolt head/lugs break far too easily. and it's due to a failure to load BB that causes it. instead of the BB loading into the hop/barrel opening, it bounces up and gets wedged between the nozzle and the fake bolt head, shattering it. a metal bolt wont break there, but now on a failure to load, the BB get mashed into the space between the bolt head and nozzle, and even into the barrel extension (a real pain to clean out by the way).
another issue with the WE is the retention clips/blocks. the stock ones are plastic and positioned at the 12 and 3 o'clock positions (they should be opposing to one another, to keep the forces of impact centered on the axis of travel). these blocks tend to snap after too few a shot, but upgraded steel ones can be far worse. example is the RA-Tech ones. they use mild steel for their blocks, and after less than 10 mags through the gun, the blocks start to deform from repeated impacts. i had one WE i worked on that these blocks got so mashed out of shape, that it locked the bolt into the carrier and were almost impossible to remove.

the WA's main problem has been poor design intent. the flat seals of the mag to bolt isn't really terrible if there is little to no wobble of the mag once inserted. any little wobble and the seal leaks, badly. another issue is the design of the bolt lock. its location of contact and the space it occupies when engaging the side of the carrier, causes it to strike the leading right edge of the gas inlet on the underside of the bolt. both on the plastic and metal bolts, it becomes a fairly silly issue (that frankly, should have been fixed long ago, but still persists in every iteration of the WA platform). once the leading edge of the inlet has become damaged, it becomes jagged and rips into the rubber seal on the mags. again, this attributes to poor gas consumption and even gas dumps.
WA's single point stop block for the bolt is just a bad idea(it should have two, opposite to each other). it's huge, and creates a weak area at the front of the carrier that has been prone to breaking in both OEM and after market replacements. it's even known to snap the rear of the bolt off.

an issue that both platforms share (has been dealt with quite well with the KWA LM4 line WAs) is the steel/brass roller on the end of the hammer to reduce friction against the carrier. this roller tends to wear down the underside of the carrier to the point of leaving a groove. i have personally seen a WA platform where the groove wore down right through and into the expansion chamber of the carrier. the KWA LM4 line replaced this metal roller with a plastic insert. this to me was one of the few and rare improvements to the platform. the plastic insert reduces friction, and is soft enough to not cause wear damage to the carrier. also, once the plastic insert become worn it self, it's a cheap and simple replacement. good job KWA, now, fix the rest of the issues.

one thing that both the WE and WA platforms should include, is the ability to adjust FPS output right out of the box. they both have room for such a mechanism, but for some reason they have not bothered. the RA-Tech NPAS system frankly sucks. it doesn't hold its setting unless thread locked, and thus defeats the purpose of having it in the first place. not to mention that to adjust it, you need to use a ridiculous tool that can scratch your barrel, and often damages the valve it self. i have seen and personally experienced the adjustment pin of the valve break, rendering its ability for adjustment moot.

if i made a list of issues for both platforms, the list wouldn't be very long, but would be very specific of how to fix them. being that i have long since given up on both platforms, i have no stake on their success or failure, so this caffeine induced rant is as far as i go. lol

on a related note, nice bolt.. though i'm sure the steel used for the carrier is fairly soft and will ding and deform from use, at which point the really hard titanium coating will start to flake off and have a party with the insides of the gun.