Sidi shoes

which is better, "MTB Five XC" or "MTB Spider SRS Vernice" ?
do both have SRS replaceable soles?
the Spider do, it's in the listing name, but the description for the Fives makes no mention of it, however elsewhere on Planet X says they do

Specification and Features of the Sidi Five MTB Shoe
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MTB Competition Sole: Has been specifically studied for this specialty, may be fitted with two toe spikes on the front for traction in difficult and muddy conditions.
The toe spikes are sold separately.
The SRS sole is replaceable. Its four tread panels, at the toe, both sides of the forefoot, and at the heel, are equipped with inox screws for easy removal and replacement.