So... I was tempted over to the dark-side by my local club pro to look further a field than my Titleist, Titleist, Titleist mentality by demoing on both track-man and out on the course several other drivers ( Epic Sub Zero, Rouge Sub Zero, M3, M4) and this is what I found:
My current driver is a 915 D4 with a Matrix black tie X which a get good solid figures from with overall average distance over 297 yrds with a nice dispersion.
He was insistent that I try out some NEW tech and would see a marked difference..... (Bold Statement)
I systematically tried numerous setups on track-man and whittled it down to 2 , The M4 and the Epic. With regards to number I gained 2 overall yards ( £200 per Yrd I don't think so) however my dispersion increased and in my opinion being 2 yrds behind but in the fairway is much better than the hitting from the rough.
I can safely say I will not be looking to replace my D4 and the old saying of ''what ain't broke don't need fixing'' is true.