PORT OF SPAIN, Trinidad – Tail-ender Colin Archilbald struck an exhilarating unbeaten hundred to haul Leeward Islands Hurricanes out of trouble while Test vice-captain Jermaine Blackwood stroked his eighth first class century to lead Jamaica Scorpions’ domination, on the opening day of the fourth round of matches today.When Hurricanes slumped to 179 for nine after tea at Queen’s Park Oval, it appeared as if Windward Islands Volcanoes were taking an early stranglehold on the contest.But the left-handed Archibald arrived at number 10 to blast an unbeaten 104 off just 97 deliveries, to fire his side to 301 for nine at the close.At the Diego Martin Complex, the right-handed Blackwood finished unbeaten on 110, a knock that propelled Scorpions to 282 for six against Guyana Harpy Eagles.Scorpions too were in trouble at 99 for four just after lunch but Blackwood produced a composed knock spanning 251 deliveries and 5-¼ hours, and including 14 fours and a six, to steer his side to safety.