For anyone with the new spiffy 7300MK2 I edited the 7300's CAT Commands to work with the 7300MK2. Just had to change the CIV address in the various commands. The 7300's address is 94, the MK2's is B6. For your convivence I have it pasted below. Just add to to your VARAC_cat_commands CONFIG file. I added it just below the IC-7300's entry.
Hope this helps! - KE2NJ
[Icom IC-7300MK2]
CmdType=HEX
PTTOn=FEFEB6E01C0001FD
PTTOff=FEFEB6E01C0000FD
ModeUSB=FEFEB6E026000100FD
ModeUSB_D=FEFEB6E02600010102FD
#For different USB-D filters, Replace ModeUSB_D value with:
#Filter1: FEFEB6E02600010101FD
#Filter2: FEFEB6E02600010102FD
#Filter3: FEFEB6E02600010103FD
ModeFM=FEFEB6E0260005FD
ModeFM_D=FEFEB6E02600050102FD
SetFreq_Data_method=BCD
SetFreqVfoA_Cmd=FEFEB6E02500{}FD
SetFreqVfoA_param_length=10
SetFreqVfoA_hz_res=1
ReadFreqVfoA_Cmd=FEFEB6E02500FD
ReadFreqVfoA_Result_Data_method=BCD
ReadFreqVfoA_Result_hz_res=1
ReadFreqVfoA_Result_Length=24
ReadFreqVfoA_Result_Freq_Start_Pos=13
ReadFreqVfoA_Result_Freq_Length=10
AntennaTuner=FEFEB6E01C0102FD
VarACStartCmd=
VarACExitCmd=


Thank you very much for your contribution ! I have included this in the next release and also uploaded it to the website for an updated CAT file.
73s!
Irad