In assembling my Pacific Electric cattle car kit by Westerfield I thought I might update the list of progress.
After 3 hours of cleaning I finally managed to get the flash out between all the side boards. I first sanded each side to where the flash was almost transparent. Work with a new #11 exacto blade took care of what was left. The side and end doors were done the same way.
I still plan to add a .020 x .020 strip of styrene in each corner for strength. I should not show much when the car is painted. Instructions on mounting the floor are a bit obscure. the instruction sheet calls for a 2 x 8 strip to be glued along each side bottom to hold the floor. I assume they mean along the bottom edge of the car floor which shows thru the side boards. I plan to add another bigger piece on each end inside for a better mount.
The warp in the floor went away after placing the floor on a flat piece for several days. No need to microwave. I then glued the center beam in place and now the floor is quite stiff.