i don't have a pnwt or fbomb but i do have a vxc hydratube which i am guessing is just a little bigger volume wise but functions the in the same way. i also don't have a lsv, but i do have a modded cannavape (which is basically the same thing as an lsv), and i will not post any vids, so my response wont directly answer your questions but i might be able give you some ideas.
the hydratube/ha combo works exactly like the hyrdratube/vxc combo, but you do need to be more careful not to knock the mouthpiece loose with the hydratube on the ha. im not a fan of the hyrdratube in general though because i like a tube with a lot of volume and preferably 2 percs, so my hydratube has only seen minimal experimental use.
the ha will be able to direct draw into almost any small bubbler or tube - as long as there is enough clearance for the ha itself. with adaptors you can even use bubs with male joints. why are you interested in the pnwt or fbomb specifically? there is a thread floating around comparing the two btw.
lsv vs ha? depends on your vaping goals? do you want to be able to vape at high temps, are you after maximum efficiency, do you have a grinder, are you a vape sipper or cloud chaser, are you clumsy? etc...
personally, i prefer high temp vapes through a big tube, so my cannavape could deliver that whereas my ha couldn't due to the 400F temp limit on the ha. the cannavape requires much more attention during a session - grinding, stirring, variables like draw speed and heat settings can be fine tuned, also theres the cleaning of the screens and tubes.
the ha is super simple to use, direct draw, or whip, and it blows bags, it can also extract with extreme efficiency and consistency. its light and extremely durable, reliable and satisfying.
hope that helps!