PC on Jade Longbow, req 9, 15^50

here it is:

Sundering Jade Longbow of Shelter
damage plus 15% while health is above 50%
req 9, damage 15-28
armor penetration 20% (20%chance)
armor +7 versus physical attacks

thanks for the help i appreciate it.
i had one question: if i were to swap the shelter mod for an enchanting one would it help the value/sell rate at all?
thanks