1. You won't need to pull the straps every time you lock up. On the Sylvans, you'll usually have to use pliers to get them through anyway. The silkscreening on the strap wears off after a few adjustments anyway, so most guys won't be able to tell they're toshis unless they have a super sharp eye.
2. Go double, they're so much more secure than the single.
http://www.f1x3d.com/board/viewtopic.php?f=16&t=471
This link is useful; there's a dozen different ways to mount your straps, but I've found this way is awesome. It may be overkill to twist the toshi bc it's so thick anyway and fits into the MKS realllly tight, but it get's the job done.