What's the deal with Shift Assist?

[MAT]

From what I was able to find this is rev hang, which has been around for years (even with carbs). Some have complained about making downshifts difficult, I think the opposite is true that's why auto throttle blipping would be a cool option (better than learning heal-toe!). My FiST was delivered 3/2014 but I don't seem to have issues others do. My revs hardly "hang" at all, if anything maybe 0.25 seconds before dropping normally. Did Ford ever revise this, or am I missing something? From what I know you can't really tune this out, and I don't see why it would be an issue in the first place as it doesn't seem to exist to the extent as some have said.

The reason I'm asking is it's a deletable option with a Mountune tune although they say it doesn't do much. Doing nothing to nothing is what it seems to me, so what's the problem?

 

[Hijinx]

A tune can eliminate much of it, but then you run into the heavy dual mass flywheel.

 

[Kip2MyLou]

The new cobb maps eliminate the rev hang. When I got my tune from Randy he gave me the option. I had it eliminated. I hated it.

 

[MAT]

Hated what? There is no hang in my car, which is a box stock later 2014 build. The question is did Ford ever revise it so perhaps we don't have the same thing? What did your's do exactly?

 

[Ghostwhite]

Cobb OTS maps rev hang even tho Cobb claims it doesn't exist. My custom tune doesn't have any assist and is much better feeling

 

[Hijinx]

Rev hang and shift assist are different things.