This time last year (with the aid of a paid tutor... full disclosure
), my kids started doing 1 VR and 1 NVR a week, not timed.
They didn't start timing themselves doing papers until May or June?? And they didn't start doing GL papers until the summer I believe. We worked through a biiiiggg stack of papers tho', but rarely did more than 1 VR and 1 NVR a week (maybe over the summer holiday they would do 2 or 3 papers a week, because I'm a big meanie!) They did do a fair amount of comprehension and other English skills, and sometimes some maths on a weekly basis. Our list of papers, if anyone is interested:
11plus exam group
AFN (we started with these, apparently they are "easier" compared with GL)
Every lesson counts
First past the post
Their school homework was/is fairly undemanding; so overall they probably did under 3 hours' 11+ work over the course of a week. Good luck with your prep. We were so calm this time last year, at the beginning of our 11+ journey, slightly nervous now...