Very nicely done l have built two Emma C Berry’s one free sail the other r/c with auxiliary electric motor the both sail nicely. Sterling also produced the Yacht America in the same scale size as the Emma C Berry. I have that as well set up with r/c and auxiliary power. I’ve raced them against each other about equal in speed. Both have removable keels.
The kits came with the tapered masts. I did have make one of the masts over as it was warped.What I did was purchase a 1/2” hard wood dowel marked the center and smaller diameter on one end then used a small razor plane to taper it to almost the shape I needed then cut the lenth just a bit longer so I could fit it into my 1/2 drill chock fastened the drill to my work bench and used it like a makeshift lath then used sandpaper to smooth and shape the final taper needed. Hope this helps Mike