Blake invented the "Swingrite" practice club about 1970 or thereabouts and it was on sale for a long time after that. I had one that I used off and on for several years, but I eventually concluded that it probably didn't truly encourage good swing habits. Tom N. gave me his Swingrite club and I fooled around with it on my back deck this morning.
Is anyone still using the Mindy Blake Swingrite club? It looks like a very short driver with a a fake plastic head and has a weight inside that shifts (approximately at impact position) when sufficient power is applied during the swing. It has power settings from 0 up to 4 in 1/4 increments. For anyone using the Swingrite now, can you make the weight shift when the power setting is all the way up to 4? SD