I dont have easy access to any kits and I have done all my conversions with no kit whatsoever and have had zero problems. Since I have never used a kit I cant say anything about their BA/BB mix, but I am a true beleiver in less solvents. Not using a kit lets me control the % of solvents being used and tren DOES NOT need BB in order to suspend and the shot is painless. Everyone has their preferences but I figure why put more checial solvents into your system than necessary?
Good luck!