My Bitx40 Raduino, now spare as I bought Mike's RaduinoX, is making a fine VFO for my 4SQRP ZZRX-40 DC receiver kit. I'm using Allard's v1.26 code with a few changes to make it tune 7.000 to 7.300 Mhz.
So, there are other uses for Raduinos with the si5351 onboard.
I wonder if there would still be tuning clicks with the si5351 onboard the uBitx?