Currently in a Titleist 915 D3 with Diamana D+ 70 X flex shaft.... wanting to switch to a D2 head. I've tested it out for one round in cold. sloppy conditions and noticed a significant increase in forgiveness on poor quality strikes. Without providing any sort of swing speed data and what not..... will I notice a major difference in spin rates from switching heads?

Thanks for reading the humongous intro..