I don't view it as a gap. They are clubs with different functions. More important is the gap between the 3W and the next club below it. Sure I use the 3W off the tee on some holes, but I don't worry about how that differs from my driver, only about whether it's right for that specific tee shot. I also use both of my hybrids and sometimes my 5I for tee shots. Club spacing only really matters to me when it comes to making approach shots.