Synergy Ethernet uplink port configuration

[CadenLange]

Hi

I would like to know if it is supported to have an Ethernet uplink set consisting of a mix of 10Gb fan-out ports and 40Gb (non fan-out) ports. I already have a configuration where Q1:1 - Q1:4 and Q2:1 - Q2:4 for both ICM3 and ICM6 are configured to give me 16 x 10Gb uplinks in a single MLAG.. I would now like to add Q3 and Q4 (again of both ICM3 and UICM6)  to this uplink but these would be 40Gb ports rather than using the fan-out cable. 

So my uplink set would consist of ICM ports Q1 to Q4 but using a mix of 10Gb fan-out cables and 40Gb QSFP cables.

My reason for doing this is to connect Q3 and Q4 to an MLAG on different set of (new) Ethernet switches - I believe thie will result in the ICMs detecting the different LACP group and marking this group as 'standby' whilst the Q1 and Q2 ports will remain active. By trgiiering an LACP failover on the uplink set, I can make the standby LAG go active and start moving traffic across ICM ports Q3 and Q4 to the new Ethenet switches and effectively 'migrate' from the old switches to the new. 

I've done this approach of switch migration before, but only ever used 10Gb ports exclusively thorughout. I can't see that the ICM would care if the upsrtream switch ports are 4 x 10Gb or 1 x 40Gb  back to the ICM port but thought I'd ask the question all the same.

many thanks in advance

CL