Hi, I recently switched out my cheap stick on rest for a bolt on, mainly because I switched to barebow and I noticed the wire beeing constantly be bend out of tune.
One rest, the Spigarell Z/T was highly recommended from this community, the other was suggested by the supplier and hat some interessting features. I ended up buying both (the Spigarell used from a club member) and so I can share my humble opinion on both. However these are my first bolt on rests and I'm still new to tuning and equipment. Similarites:
Both Rests have roughly the same size same wire thickness. Both can be adjusted vertically and horizontally, but not micro adjusted without tools. Magnet pressure can also be adjusted. Differences:
While Avalaon has a model (classic) which is visually a clone of the Z/T, the Maxx makes some things differently. Wire:
Z/T has a stainless steel wire, while the Maxx has a steel/nickel coated wire, which is meant to reduce friction on the arrow. Wire shape:
The Z/T has a (slight) dip directly at the angle while Maxx has a bigger dip halfway in the longer part of the wire, which, for me, was the crucial factor for what I choose to shoot. More on that later Wire set screws:
On the Z/T the wire is fixed from rotating verticall by two small screws. These took some time to adjust properly, in order to not rattle but also not squezze the wire too tight.
It is not that inconvenient but, the Maxx solved this by just having the whole wire ball beared, which resulted in my feeling for a consistent smoothness Magnet adjustment screw:
As I said, the magnet pressure is adjusted by screwing in a grub screw that seperates the screw that turns with the wire from the magnet. The difference lies in how this screw is fixed in place. The Z/T has a counter nut on top, while the Maxx has a counter grub screw that presses against the thread of the magnet adjustment screw. I can't say which system is safer from ratteling loose. Summary and (personal) conclusion:
I decided to shoot the Max, but the whole reason is not the quality of the rests but has mainly to do with my riser (Cartel Fantom). I haven't tested it on other risers but with my Riser (and arrows) I just could'nt adjust the Z/T rest to get my arrow in the middle of my plunger button without snapping against the tip of said plunger or getting stuck underneath.
Because of the dip in the Maxx I had more range for the vertical adjustment, as can be seen in the pictures.
Of course I can't say anything about longevity, after one week and about 500 arrows on both rests, nothing came loose or had to be readjusted. I personally think both are fine rests for the price (with the Maxx being about 5€ cheaper).