The high-quality 65mm build starts with one of the best-built Whoop flight controllers available, the NewBeeDrone Acrobee65 BB BLV3. Bear in mind that this FC has non-standard plugs on it, which only work with NewBeeDrone’s motors, so you’ll need to solder the JST 1.0 connector to each motor. (That’s part of what makes this a HQ/Expert build).
The HGLRC Aeolus motors are the best balance of performance and durability available today. (Happymodel’s Mobula6 motors are more powerful, but Ciotti says they’re significantly less durable.) We recommend the 25000 kv version, and if that’s too much power for you to control, use a motor output limit to scale them down in Betaflight.
ExpressLRS is hands-down the best receiver option for Whoops, since they come with tiny ceramic antennas on the receiver, and don’t need any external antenna.
The BetaFPV Meteor65 is Ciotti’s choice as the most durable Whoop frame available.
Next, choose the battery connector: a BT2.0 pigtail, which gives lower resistance and less voltage drop than the usual PH2.0 connector, making the most of the tiny Tiny Whoop batteries. If you’re planning to use the BT2.0 connector, it’s better to make this decision early, since you’ll need to buy batteries with a matching connector. You don’t want to use an adapter cable for flying, although it’s fine to use an adapter for charging the packs. If you’re already heavily invested in PH2.0 cells, switching the quad to a BT2.0 connector might not make sense.
For batteries, we strongly recommend the “square cell” style of pack, which is used in the linked Tattu batteries, as well as the NewBeeDrone Nitro Nectar Gold and weBLEEDfpv batteries. We believe these are all the same cell being labeled by different brands. If you end up using PH2.0 connector, you can still get very good performance by using this style of battery.
The last upgrade we recommend is the TrueRC Singularity 5.8 GHz Short U.FL Antenna. This will make the most of the (admittedly weak) vTX on the quad. You need to buy the Short version which we link here. The Ultra-short is too short to work with the quad’s canopy. And the long version is too long to easily tuck under the canopy.