You don't NEED a Stabilizer System to fly a multi blade head heli. However, there are a few instabilities you must be aware of;
When turning into the wind it will balloon up and when turning down wind it will descend. If you are prepared for this you'll be OK. I did not know this and thought it was just the instability of multi blade heads. I did not associate the ballooning and descending with the wind direction. So, I installed a Micro Beast and my 3 blade Hirobo Lama flies great.

Hovering with no wind was perfect with out the Stabilizer System by the way.

Also, remember the larger a heli is the less need for a Stabilizer System. I've flow a Bergen Gasser FBL 2 blade heli with out a Stabilizer System. Flew just great. I would not do that with a 450 or smaller.

Please post a photo of your Hughes.

Good luck.