I think the best way to answer this post is with a question. Did you get fit for this driver? If not, you should so that you find the right specifications for your swing. Your png driver may be the same loft as the Titleist you purchased but the launch conditions and spin rates may be totally different. This could occur even if they both had the same shafts. Twenty yards is a huge difference which just should not happen if fitted properly. Titleist drivers are the best in the business but no driver can make up for a bad fit with your swing. Best of luck.  

I wasn't fitted--decided to go with the middle of the road "regular" shaft  that still showed a mid-high launch angle--similar to my png.  As you suggest, I'll probably need to get fitted and see where the issue lies.  Thanks for taking the time to reply.

Thanks for the info Don.9  I have the 10.5, regular blue S+ 60 shaft.  I've adjusted the lie and loft up and down, and it does seem the higher loft is generating better results.  Thanks again.