There is nothing better than a real Bigsby (B5 or B7 as opposed to a "licensed" B700 or some such) when it is set up correctly. I installed one myself on my Epiphone Dot along with a roller bridge and it's very stable and it sounds great. And if I can install one myself, anyone can.
As for stringing them, there is a very simple trick that will make your Bigsby stringing so easy that you won't need that spoiler. Put the ball end of the string on the post as you normally would, then feed the string through the bridge and pull it up the neck. Here's the slick part - now put a capo on the neck to hold the string tight on the post, and while the capo is holding the bridge end of the string, feed the headstock end into the tuning peg and tighten it up until the tension is enough to hold the string and you can remove the capo. Easy peasy.
