I lift regularly--learned my copying others then tinkering with my own plans--and try to keep it balanced with my running, though I feel off-balance if I don't run with pack on.. but anyhow, will be going to England for 12 days in a week, and while I plan to pack my running shoes, I don't think I'll have any access to weights. Will this 1. set me back significantly, in terms of just maintaining where I'm at? 2. or will it be a needed rest/recovery that I will spring back from just fine? Any suggestions/advice/experience with this? when it comes to running, with my knee problems, as long as I try to eat healthy and stuff, I usually come back stronger and craving intervals, but that's running, not weightlifting..