FWIW
i have 5 ko helios wheel radios i have 27 and 40 Fm modules also spekky pro modules and KO 2.4 modules so i have the best of all worlds
i predominately use the spekky pro 2.4 system and not had range issues my eyesight usually fails before the radio range
Dave Fid
have a little used ko ex5ur (2.4) and 210 rx if u fancy something a little better without going nuts