I'd put it at about 50%.
Looking at 2019 and earlier picks 9-12 for a quick look
2019: Zegras*, Boldy
2018: Bouchard, Dobson
2017: Tippett, Necas, Villardi*
2016: Sergachev
2015: meier, Rantanen, Crouse*
2014: Ehlers, Fiala
2013: Horvat, Nichushkin*
2012: Trouba, Forsberg
2011: Hamilton, Brodin
2010: Granlund, Fowler
* indicates guys I'm not sure about
I'd say those guys peg over what Guhle projects as.
And the advantage with the pick is the 2 extra ELC years you get that Guhle has already used up