Every mounting process has its pros and cons. I haven't seen any document where Bainbridge actually labels the product as DryMount; only archival heat activated foamboard. Though, sometimes we attempt to split hairs with terminology.
Bainbridge does say that Artcare Restore meets all existing FACTS guidelines for preservation framing and has passed the PAT (Photographic Activity Test). It's up to the individual to make the determination if the product being used is acceptable or proper.
Like Barb, we've used the product for a while on similar projects. We've even used it on Limited Edition artwork that had been framed for years on regular mounting board, paper mats and regular glass.... and has been damaged by all of the above. We've even mounted and reversed paper that is less substantial than "Puffs Plus"
We attach a label (Bainbridge Spec Sheet) inside the dust cover indicating that the mounting product is Artcare Restore, time and temp used to mount and also a copy of Bainbridge removal instructions. That is mainly to minimize a future framer from opening the package and saying "S*&%, Oh Dear, this has been drymounted and all value has been destroyed"!
Though I only have basic test equipment, I have not been able to detect any adhesive remaining on a mount that has been reversed.... as long as the original mount was performed to the manufacturer's instructions. I have seen adhesive remaining on mounts that were done using excessive temperature, excessive pressure and excessive time in various combinations. The adhesive glows under a black light and I have not been able to detect any "Glowing" on a reversed mount. I imagine that even starch paste leaves some residue when reversed.