Looking to buy a variable speed angle grinder

[Bent]

Like the title says, looking at variable speed angle grinders. From what I can find, and of interest are 4-1/2" and 5".

My current collection of grinders I have four 4-1/2" and one 9". I like the compact size and versatility of the 4" that I have. Because of this I'm leaning towards the 4-1/2".

Question: am I overlooking any advantages to having a 5"?

As far as models go for the 4 1/2' I'll looking at either of these currently:

Metabo HPT


Makita

leaning towards the Makita if I go 4-1/2". Not a fan of Bosch unless for jigsaws.
The Metabo being brushless but 500 rpm slower.

Another criteria is that I hate paddle switches. Those that I'm considering are the standard thumb switch.
Variable speed is something I want for using non-woven abrasive discs/pads, as well as wire brushes. I have found that the 11,000 RPM range can be a little aggressive for these uses. That, and it also has a tendency to melt some of the non-abrasive pads.


As per my standard operating procedures I'm probably overthinking this.

Any thoughts?

Then there is the flat head Metabo