For what it is worth, I still use CA quite a bit for PE, especially for items not subject to shear forces, since that is where CA really falls down. I prefer to us the gap filling variety, used very sparingly (I usually apply it with a small piece of bent brass wire). The slower drying time allows me some latitude in positioning the part in case the first attempt is a bit off.
For things like railing, I use the really thick stuff. I put a blob of it on a post it note or other similar surface and then run the trimmed and formed railing over that blob, picking up a small amount of PE as I go. I then position the railing and hold it for a few seconds for the PE to set. For straight runs, I have been known to touch just a bit of zip kicker to one end, then position the remainder and hold in place till the CA sets. Then for good measure, I will take a little mid thickness CA on the end of a piece of brass wire and run a small amount down the inside of the joint between the railing and the deck.
I've heard all the stories about CA's low shear strength and up to a point it is a valid consideration. But, as far as ever having a piece of railing going "ping" once attached, its never happened to me. Its kind of like Bigfoot, some swear it exists, some even claim to have seen it, but I never have. I can't say it doesn't happen, but just not to me - yet!
I hope this is helpful. All in all, it just goes to demonstrate that there is frequently no "right" way to do many of the things we do. Rather, it boils down to what is "right" for you. Try different methods, then pick the one you are most comfortable with, easiest for you to do, and still yields satisfactory results.
Bob
Just launched: Revell 1/249 U.S.S. Buckley w/ after market PE and guns.
Building: Italieri 1/35 P.T. 596 w/ Lion Roar PE.