That one’s a Boss 7, running BetaFPV 716’s, I started to build up the Red Boss 6, but when I realized it would take these 55mm props I decided to go with a 7mm build. I havn’t changed any printer settings from the stock PLA other than increased the Ext Temp (230) and dropped the retract (30), I’m fairly new to the printer and still have a lot to learn about it. The finished print in PETG does require a lot of cleanup with a knife. I’m going to order some ABS today to compare. The props are from a cheap no name quad I got at the Post office on special, they’re nothing special, but came on 716’s, so have a 0.8 bore. The FC is an SPR F3 whoop, which I was using in a BetaFPV 65s frame I stripped to try out your Boss. I’ve been thinking to order a BetaFPV+OSD board, but keep prioritizing my budget elsewhere… I have a spare Tiny here, so either is good. The SPR has bigger FET’s so better suited to the high KV 716’s and 55mm props, The tiny looks to be a hassle to get to the USB, but I can live with that.