I am putting together a trip on the Dolores River later in May with a put-in at Gypsum Valley boat launch and take-out at Gateway. At this point we are three; one is in Soar 16' solo and two in Dagger 16' tandem. We are looking for two to three other members to fill out our group. If you are interested, PM and I will provide full details. Thanks.
The OP's post was before the DWCD had given us any dates.
Given a 21st release, Slickrock canyon won't be boatable til say the 23rd. That means there was a week of "later in May" without sufficient flow.