The E-Switch HAPP uses for just about everything these days, has an actuation point that is a little lower than some. The Competitions are considered a good "all purpose" stick, and part of what makes it so is that in order to hit the diagonals, one has to be a bit more precise in moving the stick into those areas. In contrast, the "Ultimate" sticks have larger diagonal zones, and are generally panned as being one of the poorest choices for "all around" use. The smaller diagonal zones make 4-way games play better, but still provide decent 8-way functionality. Folks with a primary interest in fighter games, would be best served by doing one of the following;
1) Adjust their playing style to use more of the stick's range
2) Use a Super (or Super Pro) which provides some easy switch adjustment to tweak the zones
3) Replace the switches with a type which has a slightly higher actuation point, or longer actuating nub
4) Tune the actuator to give you a diagonal zone which is right for you. This can be accomplished by experimenting with different thicknesses of thin, hard surfaced material, and when finding what suits you, adhering a strip to the perimeter of the actuator. Material between .010" and .020" thick would probably do the trick.
Always keep in mind, however, that 4-way performance decreases as the diagonal zones become larger. So tune carefully based on your overall needs.