From a comment by CoreAS

"The i99 has worked on every board we have tested so far. I use the i99/42 on the wizard 125 in B, others use i99/48 in C.

it ultimately depends on rider weight, rig set up or riding style.

Boards tested (All tuttle box)

Wizard 125
Horue Tiny 120
Horue Tiny 95
JP pro 135
Horue slant 135"

As I understand it tracked foils got their start from surf and kite foil boards that lacked the thickness for a foil box. There are some advantages especially for foil surfing and kitefoiling where it's difficult to change the pressure locations because of a limitations on strap placement and lack of other means to change the CoG. On windfoils, we have a) multiple ways to change the effective CoG including multiple strap inserts, changing the mast base and boom height positions. Plus, most stuff designed for windfoiling works pretty darn well together (excepting the unmodified Mr. Pink). The above comment is a good example.

The glaring example where windfoils don't work so well are on older formula/wide boards but those have deep tuttles any way.

However, we get thread after thread of beginning windfoilers using dedicated windfoiling equipment stressing over where to put the foil on the track. Additionally, what they may feel is the correct location may actually be counterproductive to their learning to foil effectively. There are edge cases where a track makes sense but for the other 90% of the public - is it just making things harder than it needs to be?