Copy would not be an issue, as long as your version is a genuine improvement over the original. Most people only find copies offensive if the copy performs poorly or no better than the original.
Need Honest opinions on a club concept
If there's no patent, I wouldn't be concerned. Look at the SLDR -- TM made a big deal about the sliding weights, but Mizuno had done them years before, and I'm sure somebody else had tried the concept before that. If your legal guys say it's OK -- do it.
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Mike Tait.....is needed in this conversation. Could be the first substantial discussion of GB!
Or, the first verbal riot, laced with profanities, accusations, dislike, bannings etc.!!
It's tough to say without knowing what we're actually talking about, but I'd say it won't matter. Does anybody really remember who did moveable weights first? How about adjustable face angles? I believe it was Nickent, look how that worked out for them. If it works people will buy it.
Follows in design as in a design being improved on is one issue. All do such. Do not most 460cc , black driver heads look alike?
Try to copy trade dressings like name (Big Brother vs Big Bertha), color scheme (blue and gold shaft painted to look like another), etc. is a knockoff.
Yea, I have no idea who did sliding weights first. I would have guessed TM, but I always remembered what Mike Tait said about there not being enough weight to move to make a difference anyway, I am pretty sure Nickent had the first adjustable face angle drivers, though. I had one years ago.
"Friend on the site..."
Sinister Golf, Riverside, CA.
Might that friend be a fellow Californian whose last name begins with an A ? 
rob
Rob, as soon as I saw this post I also thought it might be Mr A as well. Although he usually comes right out and asks himself and not through a second source.
Personally I don't care if an existing concept is used a basis for an improved product. I get turned off when companies spew marketing bullshit about how they invented it and how much better/longer/straighter it is going to be, As one end-user, for me it would be refreshing to see some genuine honesty in marketing. Go for it.
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Gus, Mr.A did post though.
To be clear we are talking about the "friend", not TGF.
Steve has a lot of friends in the industry.
Trust all is well w/you.
rob
Might be OMG Golf.(??)
Par, Sinister Golf had a driver review, Agent Orange, on Mygolfspy a few years back.
A google search will show it.
I will give you this though - ThatGolfGuy appears to have the same sense of humor as Steve.
And No, I do not think they are the same but it makes sense that they would know each other given the geo. location.
rob
Would it have anything to do with the "surprise" announcement slated to be the first on this site ?
I think so.
We saw the flash now...........Wait for the sound of thunder gets closer before the rain.
Damn we are good as a group for charade.
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Good to know, I'm looking at a driver that has a moveable 12 gram screw so glad to hear it will actually have some impact. I just remember Tait saying it wouldn't matter. Maybe because he didn't have a driver out with moveable weights, or maybe because at that time we were talking about smaller amounts of weight.
Very well could be, but as I said to Rob Steve is not shy and would bring to the forum himself, well at least normally. He is getting long in the tooth now.