I'm from that time way back when A Levels were sat at one sitting, at the end of the course, with S Levels and the odd additional O Level thrown in for good measure.....having sat on the sidelines of my daughter's AS and A Level Studies and looked at the pros and cons of the modular approach versus the linear, I don't think it's possible to make a straight comparison......each system has advantages and disadvantages and will favour some candidates to the detriment of others, depending on where their strengths lie and what works best for them...
however, given that there is currently a modular system in place designed to be taught in discrete units that layer up to a full AS and then to an A Level, with synoptic knowledge to be applied increasingly throughout the course, and with stretch and challenge questions to offer opportunities for all students to demonstrate the full range of their ability, Gove's comments and approach don't make a lot of sense to me.
Taking out the January exams in a staged, modular course seems a nonsense; taking out the opportunity to resit (Jan or June), more than once if necessary, doesn't create a more level playing field where the grade is a more relevant match to student ability.
I've been digging around in the undergrowth having a look at the research papers that proceeded this decision and the Consultation process that drew on them and I cannot find anything more substantial as the basis for the media bite '"grade inflation" headline grabber than the fact that when figures were compared of students who resat modules (to look at their grades with or without the resits included in the final grade), it was found that there was a 25% improvement.....so students who take a tumble on a paper and learn from it, do better next time.......was this really news? Why call it an 'inflated' grade when the resits are a new set of questions on the same syllabus? There is no particular advantage gained from having sat the exam once already, and if you hit the marking criteria in an exam, you hit them and have to be given the appropriate grade...