Well, by avg I means 2 things
- The tests varies drastically in every mockcat, and compared to IMS their similarity to real CAT is less. The verbal section (especially RC) is very simple.
- The quality of ppl taking the test is also not as good as IMS. I fell getting 150 out of 21000 ppl in IMS wud be better than getting 50th rank in 7000 ppl in time. Also the ranks vary drastically in TIME from exam to exam, bcoz in every mockcat, there will be 1 section which is the decisive one. 1 section wud be very tuff ( with topper getting 23-24 and avg stud 15) while other mite be damn easy (with highest score 46-47 and avg stud 25-2

. Obviously the second section decides the rank. So u cud see ur ranks varying like anything, especially if you are strong in one section and weak in another.
In IMS the overall scores in various Simcats vary bcoz of presence or absence or certain type of question like syllogisms, but a certain type of qns (say RC, DS etc) remains more or less the same quality through out the tests. For time the difficulty of a type of qns also varies from test to test.
Now abt the 100 Rs stuff, U will get really good offers if u take there scholarship test and get a good score. And I think TIME test can be a good suppliment for IMS as the timings of the test are also different>