“I LOVE MY HARGRAVES BECAUSE OF ONE THING,” says a serial Hargrave owner on his third yacht. “Mike Joyce never says no.” ¶ Joyce is the CEO of Hargrave Custom Yachts, whose latest 105, Irresistible, exemplifies numerous ways the builder tailors its designs to what each owner wants. ¶ Irresistible, for instance, has a raised pilothouse, creating an all-weather backup to the flybridge helm. The bridge is open, but it’s shaded by the fiberglass hardtop, rather than having a sky lounge on board. That’s already a lot of personalization based on the starting point of a new Jack Sarin-designed hull that tops out at 21 knots and cruises at 18 knots. In addition, this owner was planning 1,000-nautical-mile voyages, so he opted for twin 1,600 hp Caterpillar C32 Acert diesels.…