Yes, Sheyan's destination was Yorkshire and not the forbidden forest, because he was a person that deeply understood his own strength. Currently, Sheyan was able to rise so quickly, his innate ability endurance was indispensable. However, it would be powerless against magic or witchcraft.
Even though white/brown centaur leathers were more valuable, they were professionals in magic and may even have some powerful wizards as their friends. Needless to say, just based on being proficient in divination and astrology was already a huge problem. Sheyan was completely helpless when faced with an opponent who was able to predict the future through the stars and magic. Therefore, Sheyan did not rank the benefits as top priority. He was instantly fixated on the black/grey centaurs as his target. Most of the time, Sheyan's considerations were based on safety and his confidence level.
