Receiver Whip Antennas
On an antenna test range, base-loaded or mid-loaded, less than 1/4 wave, whip antennas will always show less gain than true (or almost true) 1/4 wave antennas. This amount varies, but whips are always slightly less than unity compared to true, OEM extend-able antennas (whips have a less than 1:1 unity gain, regardless of the published specs). 1/4 wave physically-correct antennas are unity (what goes in, comes out) depending on phase angle of receiver vs. transmitter.
Difference between them? Less than 1/3 of a dB.
Will I notice the loss if I install a whip? Not within 1/2 mile range.
Modern high-gain R/C receivers render themselves in (almost) complete saturation with whatever your choice of antennas.
Will a whip cure a glitch? No.