Hi Riffraff,
New guy here. I've been lurking around on the site absorbing everything I can for a short time now...but now a subject has finally come up where I feel I can actually participate and give a little input.
I've been working on the 1/350 Minicraft Titanic going on 2 years now and am "regular" over on the Titanic-Model.com forum. I assume you are doing the Academy Anniversary Edition with the wood decks, etc. Every suggestion regarding using white glue for railing installation is spot on. It gives you some working time to get them into position. Aleene's Tacky Glue is bullet-proof.
As to the proper position of the rails on the forecastle... they should be attached to the top edge of the hull, not to the decks. On the actual ship, there was a covered water-way that ran parallel between the hull and the decks (for drainage), which Force9 has reproduced nicely. Once he attaches the railings, it's gonna look nice. If his Titanic gets the same treatment as his Constitution, it will be one to marvel at.
I have both aftermarket sets of PE brass for Titanic (Gold Medal Models and Tom's Modelworks). The forecastle railings made by GMM are in 3 pieces (port, starboard and aft) so there's only one choice but to assemble them that way. There are other areas on the ship, though, where the railings stay one-piece and are bent multiple times (deckhouses for one). I guess it depends on how comfortable you are working with PE parts whether or not you do the rails in one piece or cut into several sections. I don't know how the kit's railings are set up, but it might be easier to do the aft railing (on the forecastle) as a separate piece.
One suggestion I'll give to you about the railings... DO THEM LAST (or next to last). Those things are so delicate, you stand the chance of damaging them if you stick 'em on now and then continue building on the ship.
Here's a link to the TRMA site where an Academy Anniversary Edition was built. It's very detailed, so you'll have plenty to read and look at:
titanic-model.com/.../dcboard.php
You'll need to patch the address together in your address bar to view it properly... sorry about that.
As you progress on you model, give us some pics! I love watching others build techniques on this ship. I always learn something new.
Sorry about the long post. Regards ...................... Matt