I don't know the growth rates off hand and sometimes cold-hardiness due to origin can be a factor. Otherwise, because I'm no expert, both look exactly the same to me. Dax
Growth seems to be about 4-6" {10-15 cm.} a year here, with a single leader. No fertilizer, high rainfall area. H 6 1/2' x W 1' {H 2m. x W 30 cm.} 14 years.
Erhardt, Walter - 'List of Conifer Names' (2005); ISBN: 3800148813 'Sentinel': Grootendorst 1961 no reference for 'Pencil Point'. Dax