EDIT:
There is one house rule I forgot to mention; it is common in some locales that the Queen of Spades, like any penalty Heart, should not be played off-suit until Hearts have been broken (obviously it can and should be played to follow suit). Your group might be playing with this as an unwritten rule, so your sluffing the Queen early might be messing with their mojo as they feel you're playing a different game than they are.
However, this rule makes the Queen harder to lose, making the game more luck-based and scripted. If Hearts have to be broken to play it off-suit, then "hunting the bitch" is the natural next move for the two or three tricks after the initial Club trick, and your only defense is to be the longest in Spades. So, I don't use this rule, and neither do most computerized versions of the game. I do, however, count the Queen for the "no bleeding Hearts" rule, which states that a penalty card may not be played on the first trick unless the player only has penalty cards (which is an extremely rare situation).