Spread Trading NQ and YM

would like to trade spreads like long on NQ Short on YM.
Do you give me any margin advantages on this kind of spreads? IF so, which platform would be the best?

At the moment we only provide spread margins on those instruments that are exchange traded.
We think that CQG Q Trader and TT Technologies can provide spreads.
TT also offer synthetic spreads.

Here are the links for TT: https://optimusfutures.com/TradingTechnologies-X_Trader-Pro.php
CQG Q Trader: https://optimusfutures.com/Platforms/QTrader.php

Thanks,

Matt Zimberg
Optimus Futures