Just because a pure build is better does not mean the hybrid build has a con.
I don't consider 140 1H wpf, 5PS, 8Ath and 5Shield (@lvl 31) to be disadvantaged enough to be classed as a con. Yes, its not the strongest but its definitely not weak either. Likewise, I don't consider 130 xbow wpf to be a con either.
The hyrid build you're suggesting is OP is at a disadvantage vs a pure 1h shielder or xbow build or even a copy hybrid build that isn't trying to do both shielder and xbow at the same time.
So again, I don't see why its a big deal. It does alright but in order to do both shielder and xbow you have to get a 0 slot wep and/or 0 slot shield. If you have a problem with xbow/shielder hybrid builds, I would think your problem is with the 0 slot weapons rather than the build itself.
Since we are deliberately misconstruing what other people write, I didn't know that a thrower's shield was active whilst they were aiming either. Alternatively if it wasn't deliberate and needs explaining here you go......
Xbow runs into open field -> HA comes along -> xbow fires and misses or fails to kill -> HA torments xbow who never makes it back to cover (unless the HA is utterly crap)
I run into open field -> HA comes along -> I fire and miss or fail to kill -> I pull out my shield and simply walk back to cover where i can reload and continue fighting
I was just poking fun at you since you didn't mention that a xbow/shield hybrid still needs cover anyway to reload. So they might be covered if they mess up vs a hx/ha but they still need to get somewhere to reload if they want to do so. So while they'd be protected with the shield, they still have the disadvantage of not being able to reload unless the HA/HX moves on or they find a place the HA/HX cannot access/shoot them.
Plus a pure build might not have missed with their better wpf and more focused gameplay. Always a trade off. If you think the shield addition is too good for the potential additional wpf and etc then.. ok.
Throwing isn't comparable - It has a skill associated with it to make a significant enough difference in melee build when using a shield so that it has a con - but throwing doesn't suffer from poor reload times and so the skill is justified in my opinion. Adding a skill to xbows would definitely unbalance them compared to throwing in particular as they would have similar melee capabilities but still have way slower reload times - another reason not to have an xbow skill although if throwers were more realistically limited with ammo then i guess this point would disappear.
Are you trying to say that xbows shouldn't have a skill?
A throwing/shield build is fantastic and I've seen very good players use it to great effect. Its an excellent build to get in dirty and its seamless to fight that way vs a xbow/shield build. You throw a couple axes/jarids/etc then pull out your melee weapon as you close in. Its very effective, especially to force people to come to you and fight.
A xbow/shield build isn't as seamless and like I've said xbow/shield hybrid builds are ok but not as effective as doing one or the other even when one is a xbow/shield build.
Plus there should be, imo, a xbow skill that isn't necessary to use xbows but drastically helps when you are a crossbowman. Like a reload skill. If you made xbows take longer to reload but add a skill to shorten the time, you'd see less people using xbows as a backup weapon (maybe they'd still use it as a shotgun weapon though..) and the people who actually focus on using xbows would shine as they would have the reload skill in order to do well.
Obviously there should be something added since xbows do enjoy a special niche as a very good ranged/melee hybrid (shield or no shield, no shield is better imo for a xbow focused build). Doesn't have to be my suggestion or jarold's but something does need to be added. I don't think it should be a requirement like bows but should be very much needed to do well which is why I like a reload skill. However it would require making all xbows reload slower in order to make the reload skill noticeably helpful and useful.