excel + ...?

So I'm planning on trying out a few different strings instead of my excel x bam.

Two polys that I want to try are the technifibre pro red code 18 and the signum pro 17 tornado. What do you think about these choices crossed with babolat excel?
Xcel is an excellent multifil to use in the crosses, when hybrided with a good poly.

Both those polys you've mentioned are 'okay' but personally, I'd go for BlackCode 18.