The object of our scrutiny is the Gemfan D90-3 3-Blade Cinewhoop Props designed for FPV racing RC drones.
Let's launch into the features of this product and see how it stacks up in the market.

In practice the Gemfan D90-3 props are a standout performer for drone enthusiasts. The 3-inch pitch and lightweight PC material make for an excellent combination that delivers optimal speed and stability during flight. These props are compatible with 5mm/1.5mm mounting holes, which provides added flexibility and convenience during installation. While they are slightly softer than other props in the market, this does not impact their durability or longevity. Overall, the Gemfan D90-3 props are a solid choice for those looking for reliable and high-performing props for their FPV racing RC drones.

In other words the Gemfan D90-3 props offer numerous advantages, including their lightweight and durable PC material, compatibility with different mounting holes, and optimal speed and stability during flight. However it's worth noting that some users have reported that these props may be slightly softer than others, which could impact their overall performance in certain conditions.

In conclusion it is abundantly clear that the Gemfan D90-3 3-Blade Cinewhoop Props are an excellent choice for those looking for reliable and high-performing props for their FPV racing RC drones. While there may be some minor drawbacks to consider, the numerous advantages of these props make them a worthwhile investment. For those in the market for high-quality drone props, the Gemfan D90-3 should definitely be considered.