I believe it is referred to as a step down cycle. However, it didn't turn out too good for me - the one where we did it the traditional way, I landed in hospital for a week after EPU and was off work for a month...

The one cycle where we avoided OHSS was the one where we started at 200IU and dropped slower, keeping a VERY careful eye on things - daily blood tests from day 5, which got VERY draining. But what I think the key difference was - following an extremely strict low-carb, low-GI diet for the duration of the cycle, from about a week or so before we even started down reging. I had one blip in my E2 levels towards the end of the stim phase, and it matched exactly with the day I thought "stuff it!" and had a burger and chips for lunch. Considering I was on daily blood tests at that point in time, it was pretty obvious.

BW