Looming bows - yes, even small amount in accuracy and speed is worth it, in some situations it can save you.
Looming arrows - if not bodkins then no. Non loomed bodkins have a bit too small number of then per quiver if you like to spam with arrows using fast bows, or like me, shooting enemies frome huge distance.
Someone can say that there are so many archers nowdays, that you can loot arrows. It is a good argument, but sometimes theris simply no time to loot, or it`s to dangerous to get out from your lovley position.