Not all of the power and waterproof pipes line up.
I was going to just cut and resize, but it'd be better if it can be done with the unflats (not sure when they were done or by whom).
BDcraft forum moderator - "No power in the 'verse can stop me."
I've done a tidy filter GUI like the one I did for Forestry. Just a bit easier on the eyes:
spanky is a phony brony.
Im also known as Duck5200 in some far reaches of the internetamabob
Put it in an alts folder if you prefer yours. I just think it was a bit bright is all.
I don't know if this has come up yet but I found an issue with "/gfx/buildcraft/blocks/external.png" not being present in your texture pack. Since other Mods seem to dynamically fill it with their own pipe-textures, it will result in pixelated textures because the original buildcraft version is only 16x16. I fixed this by upressing BC's external.png to 64x and placing it in the texturepack.
edit: (regarding the screenshoots) The buildcraft pipes render just fine - the problem is with the additional/forestry pipes. Best seen on the Teleport pipes.
Hope this helps and keep up the good work!