If you decide that 8th notes sound best but you run out of stamina, I would suggest something like the following.
o = note, x = rest
| o o x x o o x x | o o x o o o x x |
This gives you a bit of breathing room, but doesn't change the 8th note feel as much as straight quarter notes would. Of course you could still throw in longer notes (and/or longer rests) as needed.
The above could apply to 16th notes as well.
o = note, x = rest
| o o x x o o x x | o o x o o o x x |
This gives you a bit of breathing room, but doesn't change the 8th note feel as much as straight quarter notes would. Of course you could still throw in longer notes (and/or longer rests) as needed.
The above could apply to 16th notes as well.
