We did very similar (and I've posted elsewhere about what we did so don't want to go too overboard here - see http://www.elevenplusexams.co.uk/forum/11plus/viewtopic.php?f=11&t=46110
We used CGP CEM style 11+ practice papers this last time round (Sept 2015 11+) for small fry (typically scoring between 65% - 75% early on (April - June - maybe 1-2 a month/ not always timed) and 75%+ from July/ August in run-up to exam. In 2013, we used Bond practice papers and old NEFR style papers - hand-me-downs for little fish - I think they were a bit too out of date - but her scores were generally between 70% - 75% - so we knew it was 'borderline' going into the test - and indeed so it turned out.
At this point with both girls I had enough data from practice tests/ 10 minute bonds to see patterns in what was going well and what wasn't - our approach was to spend more time on the areas that were more of a struggle. (so 2x 10 minute bond practice in say maths (if that is the problem area) to verbal reasoning (if that's going well).
You should have a number of tests to refer back to now - so try to work out which type of questions are their strengths and which type of questions are their weakness - so maybe Non-Verbal reasoning is easy for them but Verbal reasoning is difficult (or visa versa).
Once you know that my advice is spend 2x as much 10 minute bond type on the difficult area as you would on the easy areas.
Within each category - Verbal (cloze & including synonyms/ antonyms with this)/ non-Verbal
(comprehension & vocab) have a look at the type of questions comprehension vs. meaning of vocabulary/ calculation problems (maybe good at straightforward calculations but struggling with word problems), non-verbal (remember that nets/ cubes have historically never been used in B'ham) or verbal (remember that codes have historically not been used in Birmingham).
Find the problems/ questions that consistently are a struggle - and work on those. Give them more time/ practice them together with your child - explaining your logic step by step at first and then gradually have your child explain the logic. Don't worry about timings with this practice - more important to 'get it' as a concept in the next month or two - and then work on speed.
Finally - as ever - I agree with all who advise read lots and don't let a new word pass you by without looking it up.
Comprehension underpins the entire test - so really work on ensuring that your child understands the instructions/ terminology used on these tests. They will feel time pressured/ stressed on the day - being calm in those first few moments after you've opened the test section and absorbing what the task is and exactly how you are to answer the question on the mark sheet is time well spent. Classically the maths problems give children more information than is actually needed - so with word problems take the time (maybe underline) what precisely you are being asked to find out.
I don't see any Cloze practice in your list. If you are only using 10 minute bonds for verbal reasoning - I would strongly urge you to do some Cloze practice - fill in the blank in passages where you have a word bank or hang man style words in passages where you have a few letters (as a hint) and have to fill in the rest. Mixed sentences (where you are given words out of sequence and usually have to work out what the sentence is and/or which word is not used in the sentence) have historically appeared. Practice Cloze papers are available - just type CEM Cloze in Amazon or visit a large bookstore/ news agent. These are very different from the Bond style prep - but regularly feature on the King Edward 11+.
As ever - check the sticky on the top of this section to see past content of exams and use that as a guide to the general type of questions to prepare for.
Hope that helps.