i didnt do BLS with DS1 (didnt know much about it, still dont but will research more for DS2) and he is a FAB eater. that said i was v experimental and he had a huge variety of foods from v early on... pretty much what we ate v early with adaptations... i did a lot of mushing in the early days...
i think offering a variety and making food fun and not stressful would help the most... and their general temperament...