I'm lighter than most others in my class, and combined with not being sure how to initiate takedowns when starting from the knees (seems extra difficult when sparring partners are grounded), I usually end up playing guard when sparring. While this has improved my open guard, I'm concerned that my guard passing is lagging behind, so I'd prefer starting out on top sometimes. What's the best way to do this? Is it acceptable to just ask to start in someone's closed guard (I noticed in another thread that some people here share my feelings about knee fighting being awkward), or are there techniques from the knees that I should be learning in order to get to work on top more? Thanks.