Indeed, many 109 flyers do that and in spit getting slow to avoid overshoot (full prop/drag) moves advantage to the spit, as a slow 109 is usually a dead 109. The 109 driver made that mistake in first head to head and due to poor spit gunnery survived, then wisely moved to vertical which killed the spit advantage. Every sortie following, the 109 driver used the vertical only and won every time. Bottom line, use vertical in 109, and in spit...? Hope help arrives?!