However, this model was also opposed by Fender as its features were "off the Fender's beaten track". The use of a humbucker (instead of a single coil), 24 jumbo frets (instead of 21 or 22 regular frets) and occasionally basswood (instead of the typical alder or ash) as well as the overall appearance were not particularly welcomed by most conservative Fender fans. Today, a well-maintained Fender HM Strat becomes increasingly rare to find. As with most discontinued instruments, however, this guitar is also hard to maintain. For instance, although Kahler USA provides product support for the Kahler Spyder tremolo parts, various other components of this guitar such as knobs are currently unavailable.