I've been working on the predator tank seriously for about a week. I was slowly putting the big bits together, but now I'm working on filling the gaps.
I've found all GW kits have badly aligned seams. Do other companies have chronic sinkholes and mold seams that are off by over 1mm like GW?
Now, I'm going beyond what most gamers do. I've drilled out all the exausts and bolters. I've filled seams that GW didn't fill in their pictures, but were obviously not meant as panel lines.
The rivets I've replaced were sanded off when I was working the putty. There was also a little filling to do with the front armoured visor which is supposed to be able to flip from buttoned to un-buttoned, but it would have had to be glued to stay open. I decided to model the tank fully buttoned, so glued it down. However, there was a couple of gaps where the hinge was which wasn't realistic, so I filled there as well.
Also, the sponsons are engineered to move, up and down and right and left. However it's plastic on plastic, so one is nice and stiff, the other is loose and droops. I'm going to glue them so that they don't tilt - right and left will have to do.
I'm basically taking my time, enjoying the process, and learning techniques I'm going to use on my first display model. I think I have another 3 days of build left, before its time to paint. All told, I estimate about 20 hours total to assemble everything.
Get some squadron green putty if you plan to do any filling. Milliput and Greenstuff (the most common putty in the GW gamer's toolkit) just don't cut it. Their too thick, they take forever to work into the gaps and are basically better used for sculpting. I started with milliput, but it took me forever to do anything. Squadron Green goes on fast and sands off easy (let it cure a fully 24 hours first)