I suppose each type of system has it`s own issues....one of the main ones is cost ..toppers are about half the cost of Fullcaps....then, in warmer weather, Toppers are ` lighter` .. of course getting the blend-in onto the side/back hair is vital as is maintaining the correct shade of colour ...all part of the constant balancing-act we engage in......
I remember when you began wearing ...5 years ....hard to imagine now, how quickly time passes ...with Fullcaps, the main concern for me was would they tie-in the hair correctly on the flaps/ sideburn area.....unless that`s ``Flat-to-base`` the unit is all but useless..... colour is not really an issue as it`s all the same colour all over ...... the main thing that ruins topper colours is shampooing them too often ...dries-out the hair [which is already dry compared to growing -hair] and lifts the colour...very visible in good natural light.....