I gained tour average club head speed just doing the basic Blueprint/Bertholy programs: Static holds and slow motion exercises and swing drills that focus on proper sequencing and tempo, and started out using the heavy swing pipe. My whole frame of reference and experience was heavy and slow, and when it was first suggested to me that to "be fast you must train fast" I resisted - surprise surprise right?
Gradually I opened my mind to the possibilities of speed training and using info from Barrda here and the Titleist performance Institute as guidelines, built my first over speed club and began training with it. I gained another 5 mph in a short period of time.
I had decided that I would try the speed chain based on the (over the top) testimonials and reviews of many LD devotees and it just so happened one of my readers had one - so I did the test. The gains with this method were significant, and more than one member here has witnessed the reported gains.
There is no doubt that anyone will swing faster after warming up and they get loose. it also isn't a good idea to perform any explosive athletic movement with cold muscles!
This is what the chain folks say on why the speed chain is so effective, because it meets these four criteria fro increasing speed as identified by scientists and bio-med sports performance experts outside of golf:
1. Movement pattern must be exact or as similar as possible to the athletic motion involved. Movement pattern is simple to see. Pulling a rubber band will not effectively strengthen ones swing because the movement pattern is too disimilar. Rubber band resistance has a linear path, whereas swinging a golf club is a circular, rotational movement on many planes.
2. Contraction velocity must be similar to the event. Velocity is easy to see. Turning with or throwing a medicine ball is very slow in comparison to the swinging of a golf club. Yet many golfers in an attempt to increase clubhead speed, do exercises with it. If the exercise is done too slow, how will you move faster during the swing?
3. Contraction force must be higher than the event. Force is difficult to measure without the use of high tech biomechanical equipment. But understanding that one needs to overload somewhat to get a strength benefit is logical. The problem arises when one overloads too much and velocity slows down, which in turn decreases the amount of force. This is the problem with weighted clubs like the Momentus which is so heavy that high velocity cannot be attained. Thus more power is unlikely to be found here.
4. Contraction type must be the same. Contraction type is extremely important since explosive movements use the stretch-shorten cycle. The stretch-shorten cycle is the short, rapid stretching of the muscles prior to a forceful contraction and is present in all explosive movements. Proper weightlifting techniques discourage this type of contraction. Therefore training benefits are minimal for speed.
So the info is there and the research is abundant for anyone to bounce off of the statements above.
Regarding you trying one, you may be in luck. Several of my readers (including one long time and highly respected member here) are going to be implementing a chain training program once they can get outside. A couple of them are going the home brew route and fashioning their own speed chain. Once I get the info I will report back.
Never quit til you have a swing you'll never forget!