Its interesting about some folks getting bulging between camlocks when attaching upper, lower and boot cowls. Others, including myself, have none of this problem. I don't know if its luck, careful craftsmanship, or what. I do know that fitting the 3 cowl pieces together is probably the most challenging part of the build. I would encourage new builders to take your time, don't do too much at once, try to end up not having to push anything into position; it should all lay together smoothly with a minimum number of clecos to hold it together before camlock installation. It is also possible that there are enough inconsistencies in the fiberglass moldings that no matter how hard you try, some may end up with less than ideal results.