Jetpack is an add-on framework for leader-based consensus protocols that enables 1-RTT fast-path commits by running parallel execution paths, reducing latency in WAN deployments. However, the dual-log architecture introduces redundant network traffic and CPU overhead, and the fast commit optimization only benefits write-heavy workloads with nil-externality; interactive reads still require the full 2-RTT latency. Evaluation across six consensus systems on AWS datacenters demonstrates gains for write-heavy pipelines using YCSB workloads.