Striped meta configurations

This topic has been discussed in this forum in several threads but I'm not completely understanding the best approach to striped meta creation.

Environment:

My environment will be 100% thin devices.

I'll create striped metasmostly for Windows hosts, usually running MSSQL and where thsy ask usually for a small number of LUNs which vary in size from one host to the next, depending on the applications using the storage.

We're a new EMC customer and we're having some internal discussion around meta standards.

My question is about meta member count for thin devices. If I choose a standard TDEV size, like 32g for example, can I expect near linear performance increase as I increase the meta member count by 1. For example, will a 5-way meta outperform a 4-way and will a 6-way out perform a 5-way. Is there any negating impact to I/O load distribution within the array if I choose a meta member count that just fits the lun size request, whether it means a 4-way or an 11-way meta.

I'd rather not be limited by 4,8,16 because I think over time I'll be over provisioning more than I'd like. So if I have flexibility to choose meta member counts ranging from 4-16 in 1 member increments that would be desirable. Based on the other discussions in this forum I believe this is the case. Could someone confirm whether this assumption is correct.