Hey there, i finally had a look at this mod version now and i have to say, great work.
But i found a few minor "issues" which some of the fuel tanks.
The 1.25m and 2.50m pancake tanks share their internal designation with some other tanks. "KW Rocketry SA-1 LFT" and "KW Rocketry SB-2 LFT" are both already in use in "KW1mtankL1.cfg" and "KW2mtankL2.cfg" files. I personally would rename the pancake tanks to " KW Rocketry SA-1P LFT", "KW Rocketry SB-1P LFT" and also rename the 3m pancake tank to "KW Rocketry SC-1P LFT" to achieve some consistency.
There's a little typo in the "KW5mtankL3_5.cfg" file. The amount of oxidizer is set to 34114 instead of 35114.
Also, i would like to talk about the 2.5 and 3 meter -4A fuel tanks, the unpainted ones. If i remember correctly, they were originally a little bit lighter than their painted -4 counterparts. Wouldn't it be intresting to introduce that again, but made the -4A versions significantly less heatresistant for instance?
And one last point, although it's probably more a point of general discussion. Are the medium and heavy struts really still used by somebody? I mean at the time the first version of this mod appeared, they were useful, no question about it. But with KSP v1.3.1 i don't see why we still need them. It's not like in v0.22 anymore, when anything had the general tendency to fall apart by just looking at it.