MMS Send limit - should I increase it?

[WhiteBlazer01]

Wirelessly posted (HTC Touch Pro 2: Opera/9.80 (Windows Mobile; WCE; Opera Mobi/WMD-50430; U; en) Presto/2.4.13 Version/10.00)

I did the regedit to increase my mms receive size limitation (increased it to 5MB), but should I increase my send limit? What if my friends blackberry or iPhone or whatever phone can't receive such a large file size?

Another question: When my send limit is 300KB (for example), and I select a picture that is 500KB, it asks me to resize and compress it. This feature is really cool, but it's not available if the send limit is higher than the file size. How to I open this feature? (Do you guys know what I'm referring to?)