i beleive i would stick with the 7.5in barrel, i just bought one on GB in the 475 linebaugh/480 with the short cylinder as well it is a very nice piece that balances very well i would think that the 10.5 wouldnt balance as well, as stated above i would look around and shave 1-2 hundred off of the price, i see some of them for 650.oo buy it now on there Ron