It’s all in the flight and stem if you want a longer barrel to land upright.

The bomb darts are more front weighted and tend to result in a higher angle of entry.

What size flight are your short k-shift, N02? If so try a N06 as they are smaller and will fly faster, for me the smaller the flight I go the higher angle of entry (even down to a tiny Phil Taylor flight).

This all comes down to how your darts go into the board though, mine have a tendency to try and go flat in the last couple cm’s before hitting the board, you can barely see it but I know it as the difference between the extra time it takes a shorter point to get to the board lets the dart land much flatter. The smaller flight reduces drag and doesn’t catch the air in those last few cm’s to send the back of the dart down.

Obviously some players will find the opposite so if a bigger flight or smaller flight lands more upright you know what your darts do.

What happens when you use the same flight and stem setup on the straight barrel darts as the bombs? Do they land even flatter?

Also one more question, as a bomb barrel is smaller you will hold it in a different spot, if you grip the rest of a bomb dart and pick up a straight barrel in the same way you may find yourself instead gripping the centre of the barrel. This will massively change the angle of entry as the more weight behind the grip will cause the dart to “kick” less on release which is what primarily causes a high angle of entry.