I just purchased set of T-250 Launch Spec 5-GW with Mitsubishi MMT AMC Red 65 R2 shafts. Love the feel and launch of these iron but need a 4-iron for those shots over 170 yards. My question is what shaft to order based off my T-250 specs below: Hand: RH Set Comp: 5-GW Loft: Standard Loft Lie: 1° Upright Head Weight: Standard (Default) Shaft: Mitsubishi MMT AMC Red 65 Length: +0.5 Flex: R2 (Lite•Senior) Grip: Golf Pride Tour Velvet 360° White Flat Cap Grip Size: Standard Grip Assembly: Standard