Most TCP data transfers in the Internet are short. This makes the startup algorithms an important factor that impacts TCP performance. Several startup algorithms have been developed. However, not a lot of research has been conducted into how these behave and interact when used for short flows. This paper aims to provide a thorough evaluation of these algorithms and their interactions under different network conditions, focusing on short flows and using ns-3. We have observed that JumpStart seems to outperform the other algorithms used when it comes to flow completion time for short flows. That is likely because it starts to send data with an aggressive initial congestion window and the flow is finished after the first few RTTs. However, JumpStart performs more poorly when the flows are longer. We have shown that JumpStart has a great potential to make communication more efficient in the Internet but further research has to be conducted into its behavior in more adversarial conditions that represent real life situations better.