It would be great if you can enable advanced options for picture resizing & quality for MMS.

If you have low mms size limit that really matters

example : I guess most people would prefer higher resolution (like 1200) with lower JPG quality (let's say 75%) rather than 400x600 with 90%

option might look like :
- try to keep minimum picture size at <1200> (shorter edge) lowering the picture quality up to <75%> max
or on the other hand :
- try to keep minimum picture quality at <90%> resizing the short edge down to <800px> minimum

or sth like that...