I tried Shane's Govinder IPA at the Birmingham Beer Bash in 2015, it was a fringe event and about half a dozen of us sampled 3 versions of what Shane had brewed, I can't remember exactly, but they were of different ages and condition, including wood. Dr Chris Ridout was due to attend but he couldn't make it. Chevallier is unlike any modern malts and I would describe it as very rich and complex, quite unlike the malteser type taste of Maris Otter. We came to a consensus that the richness resulted in the massive hop additions used at the time (1800's) simply because the malt could take all that bitterness.
A couple of articles here from Ron Phttp://barclayperkins.blogspot.co.uk/search/label/Chevallier
Thanks for letting us know Kyle, I'll be ordering some, and I'm inclined to brew an IPA for THBF in the summer, of course the judges will have to abide by BJCP guidelines and I'll probably get nul points.