Boondocker MBA will ALWAYS start in boost. That is just the way it functions. However charging at 14.6 is a bit of a misnomer. Once BD holds 14.6 for 15 minutes Boondocker shifts down into normal mode at 13.6 volts. Depending on amp rating and battery size this shift happens about 70 to 85 percent charged. Could work well as a direct WFCO replacement if you can rely on your solar to finish the absorption phase of charging. I recommend the 45 amp with 2x GC2. This is probably the low cost option.
http://www.bestconverter.com/Boondocker-Main-Board-AssemblyYou could get the manually controlled Boondocker and crank on the battery as hard as you see fit. This would be a portable system or mounted near the battery connected direct. Need to watch this one to avoid running the generator too long. Not exactly a boost and forget converter.
http://www.bestconverter.com/Specialty-ConverterHonestly I recommend the PD9260-14.8 converter. This should fit in the WFCO slot and automatically boost the battery four hours at 14.8 volts before dropping to 13.6 normal mode.
http://www.bestconverter.com/9200-148-Volt-Deck-MountThe PD4655 or regular PD9260/70 should also serve well charging four hours at the standard 14.4 volts.
