Unfortunately I don't have much experience shooting with long bellows draw with the XVa because I haven't used it for tight portrait work. The appeal for this lens was shooting landscapes so when I'm in the field I can have three focal lengths with one lens.
This is why I've emphasized that just because I like the XVa doesn't mean you will.
Thanks for taking a look at my website. I wish I could find the time to update it, or more ideally redesign it. I have so much more new work, but each time I turn around 2 or 3 months have flown by.