With practice I think SCJP5 should not be tough... I took the two sample tests from K&B and also practised the whizlabs simulator for SCJP5. Some questions on API's from whizlabs were out of the certification objective. Was able to get only 70-80 in whizlabs practise tests. In the final whizlabs
test got 90. Hearing others saying that whizlabs is tougher than the actual exam, was confident in taking the real exam. The sample test from K&B were in line(w.r.t to toughness) with the actual exam questions. Manually typing the code in a normal text editor without any autocomplete feature will be helpful from certification perspective. I used Jedit for practising...