if it's a one pump system...burn it!
No need to burn them, they are actually easier, although they take longer because of the need to connect all the hoses and clips.
There are some kites I would recommend to burn, but thats too political for me to say!
Because of all the nipples, they are easier to line aup and easier to prevent a twist, and have never seen a one pump kite with a hernia type blowout caused by a twist. So there is good and bad about them, way more good in my book especially pumping them up!!!!
The method I have described above means one person can install a LE bladder on their own, I do it all the time, even one pump bladders.
Just fold the bladder concertina style at the centre opening of the LE and keep you eye on it as you pull the bladder in with the "tool". The tool can be as short as 50cm, it is a very quick way to put bladders in, and is the same way that it is done in the factories!