I am currently playing a stick that weighs around 360g and has a SW of about 338. Recently, my shoulder has started to whisper small complaints to me (and am a geezer 57 yo). I have started doing the Thrower's Ten (which is really 19 exercises, but I digress...), and I don't practice serves or overheads any more, which takes a toll when I play matches. I love how this racquet plays, but I am thinking about lightening it some to ease the load on the shoulder. The question is how much to lighten it. I have leaded it up, and removing the lead and going back to stock will give it a weight of 343 and SW of 318. Is this going to be enough to make a difference? Do I need to go that light? (I would pull the lead and try it out, but I am out of lead tape right now and want to make these changes intelligently). Opinions wanted.