Peter I use a very heavy version of the "Weighted club".
It's a "Doc's Power-Stroke" On Ebay, my 50 ounce 8- iron cost $43 plus shipping.
A couple of bends in the shaft (I think it's a marketing idea, as it boils down to the same feel as a straight shaft), an 8 iron head attached to solid pig iron shaft.
50 ounces is amazingly heavy when being swung!
I love my Power-stroke
I swing it all the time:)
Initial evidence that it works is that I felt the "Work" in different muscles other than the usual ones I feel it in when I'm lifting weights.
I've been using it for about 2 1/2 weeks.
I am measurably stronger; I have hit a few longer drives and iron shots each time I have gone out for the last four or five rounds.
Last Thursday I hit a drive over 270, the guys I play with are dumbfounded. They don't know where this is coming from!
Obviously it's a combination of things: better sequence, better angle, better grip, but it is just as certain my golfing muscles are also stronger
