New Rigging for Gardens

No, I haven't sailed Gardens so long and hard that she needs new rigging. But my efforts this winter have been aimed at personalizing Gardens to suit my own preferences - esthetic changes intended to please my eye rather than necessarily enhance and improve performances. So, to that end, new rigging. DVX double braid in "Traditional" color. Mizzen spotter, mizzen sheet, main halyard, and main sheet in DVX "Tradition" double braid

Been a while since I whipped any lines, but I'm satisfied with what I did today - the process came back to me easily enough and the results improved steadily. I'll trim the ends down a bit. Any suggestions for heat sealing the ends without mushrooming sharp edges?