If you have to choose between these two, it is better to be relatively flat. There is indeed a bit of a Tian Ji horse racing flavor in this, and there must be a so-called tactical arrangement. If it is called a strategic consideration from the breeding pigeon pairing, it is to go ashore alone.
The first level of the One Loft Race is generally less than 300 kilometers, and 280 kilometers is a single level to run fast. For example, if you have 50 pigeons, can you arrange 10 pigeons? It is a high front cavity and a relatively triangular and short body, which is typical for short-range fast pigeons. You can consider playing this, and the pressure is over a little more, which is a way to consider.
If you generally choose whether it is better to have a high tone or a flat tone, sometimes it is difficult to describe it clearly, it depends on your purpose, and it has something to do with your race line. For example, almost none of the mountainous areas of Yunnan, Guichuan and Sichuan are good to fly, and the so-called good flying is also relative. For example, if you go to a 500km race, fly at least 560 km or even 600 km, and its score will come down. The score means that it flies longer, which means that it consumes more energy.
Any factor that does not prevent it from flying needs to be removed. The high cavity brings, as I just talked about, the high cavity consumes high physical energy, which is not conducive to this kind of flight, so you have to consider what your arrangement is? If you are going to play a multi-level race, it is never advisable to hand in some pigeons with high chambers. If you want to go ashore single, 280 for one and 420 for the second, you can consider the relatively high cavity of some pigeons. Carrier pigeons