U shaped Gusset help!

Hi Peter,

I'm trying to do a tight U shaped gusset, like on the salem pochette. However, I cant get the bottom of the gusset to fit. The gusset always ends up with not enough material at the bottom, but when I fix that issue the next issue I can't get rid of is the gusset will not bend into position, it keeps wanting to lift up. Any tips.

Thanks

(My issue is with the inward bend at the bottom of the gusset.)