i got this to replace a cobra radspeed 3h that i used to gap a 3w and 5i. that wasnt the brightest idea (ball flight too hot with a 3h, gap still too big), so i bought this 4h and switched to a 3w-5w-4h-5i set up that seems to work better for me. my driver ss is only 84mph, and the senior flex pgi 65 is a good fit. i tend to hit woods and irons better than hybrids generally, but when i hit this club flush its a nice strong ball flight, straight and long and high with a soft landing that holds greens. really good feedback on mishits (which still end up playable). good utility too, ive used this hybrid to punch out of weird lies and it works. pgi stock shaft is great, smooth and lightweight in the senior flex. love the matte black head at address. as a side note, cobra seems to provide really good lightweight stock shafts for slower swing speeds at a slightly lower cost than tm/ping/callaway, so if u need senior flex and like lightweight shafts and like to "self-fit" (everyone says to get fitted, but im too lazy to do it unless its for driver), then give stock cobras a try.