Dear Barcuti ,
As I told you some time ago , ANY boost converters COULD be set in parallel ( but no more than 2!...). I 'm doing this for few years now , and I NEVER had problems...The idea is to set the output voltage at THE SAME VALUE, up to the second decimal , the thermal drift of voltage will be negligible ...The current set to 1/2 of the max value ,and you are good to go... Dummy load for each converter, for the accuracy of settings...
For the case that you are a perfectionist (!!!) , you can insert , on the output , two schottky diodes ( able to sustain the current demanded ) , one for each converter .., in this way , none of the converters will be a load for the other , even in the case that the difference in output will became significant...
As I know that you are a professional , testing on the bench wouldn't be a problem !
I remember that once I forgot to set the current potentiometers at the same value ,on both converters , and guess what...nothing happened , because in the moment when one converter reached the maximum set value , the voltage slightly drop ( maybe 0.1 V !) , and the other one started to take over the load...