i don't think pound is worth the volume carried, when a siltarp carried for the same purpose and serving more, varied purposes would weigh less and pack to 25 percent of that.
and why not the bivy that came in its sack? you think you only might need it, and it weighs a third of the minimalist, and will still pack smaller. i know its a bit damper, but again, its only a maybe you're going to need it.
a third of the weight of the other shelter is significant for an ultralite bikepacker.
you'll have fun regardless, just offering my input on the gear.