Thanks for the details! im currently in the same boat with a tight 20s3p 18650 in a syr case. its so tight i was considering removing the shoulders completely and use 2 pieces of .2mm g-11 above and below the bussbar and then wrap the entire pack in kapton and one layer of .8mm(1/32") poron...
m620 motor @ 52 or 60v. i already own the frame, and now im having cold feet about the durability. everything looks and feels great with the build so far, but im just worried itll be for naught if the frame breaks first jump.