I would stay away from the Spiderwire and Fireline. Spiderwire is more flat than round and there have been problems with it eating up rod guides. I haven't tried the newer stuff lately but I know there were problems with the older Spiderwire. I have noticed the Fireline I have on some of my spinning reels is starting to flaten out as well. It doesn't cast as well and it is digging a little too. I have been using Power Pro on my spinning surf gear with a smaller mono topshot and it is holding up well. It hasn't flattened out with almost a year of use. I am going to swap the line on the reels soon so the bottom of the powerpro on one reel will be the top on the other reel. You save mucho $ this way and it lasts. I just use a little mono as backing over the spool but if you don't want the extra knot, the pet adhesive stuff does work great.
Also, set your drag much looser than you would for mono, at least for the hook set. And when you set the hook, don't rear back. For trout just a quick snap of the wrist will get you a good hook-up. I still tend to give the flounder bites a hard go as their mouths are a lot tougher but I still have a loose drag on the hook set. You can tighten down a little on the drag to get the fish to the boat but when you get it close, I would loosen up again on the drag. Head shaking and that last run boat side will tear out the hooks if your drag is too tight. I also use a fluorocarbon leader on my trout/red set-ups but I only use a 2'-2.5' leader attached with a small black sampo swivel. If not, I tend to get lots of line twist fishing with plastics.