Chris G

Thankyou! This is exactly the problem I was having.

Just did a clean install of KSP and a bunch of mods (all mods worked together fine previously). I noticed that procedural SRBs no longer work. All other procedural parts seem to be ok. But for SRBs - the config menu is weird: 1) The SRB Type is listed as "**not found**". I can click on the arrow and change it to "Default". That is my only option. 2) However changing the diameter or the length has no visual effect - the size and shape of the SRB does not change (though the fuel stored does change). 3) The thrust (ASL/Vacuum) is blank. Should be two numbers there.... The Thrust slider DOES have a number and I can adjust it - but that does not make an ASL/Vacuum number appear 4) I can change the shape in the menu (but again - visually the part does not change). Once I change it away from "cylinder" I can never get cylinder back again. Note my log file is filled with entries like: [LOG 21:43:47.074] RCS exceeded loop count [LOG 21:43:47.074] stageStartMass = NaN [LOG 21:43:47.074] burnTime = Infinity [LOG 21:43:47.074] StepEndMass = NaN

How can I adjust the cost calculation? Particularly for SRBs? I tried modifying the config file 4SRB.cfg parameters (Cost and %costMultiplier) but they seem to have little effect. I'd like to get the cost to be close to equivalent stock SRBs (right now procedural ones cost quite a bit more than the same size / thrust stock parts).