Let down too strong.

I have been pumping more to increase my supply as I had to supplement in the beginning due to health reasons but at 6 weeks we are able to solely breastfeed. I've noticed that my LO seems to choke on my let down. I contacted a lactation consultant who told me to feed him in a different position than the football hold such as the side lay but he's still struggling. Has anyone tried anything different that worked for them?