Thadster, tell me you are not just now discovering these beauties. The 1.7's have been my go-to for over a year now. I've just in the recent months added the 2.8's to my rotation for my VV mods (ShanMod and Provari) but still carry the 1.7's for my Reo, SB and Pipe. I've also started ordering both versions in the 45mm length so that they fit my 6ml tanks. They work just as well.
As for the info you requested, it's in the description on MV's site: These are a little longer then the standard. They are 35mm in length