An experimental thruster pack that would connect to the existing JIM models was designed, but the suit gradually fell out of use with Oceaneering as their new WASP suit, a mid-water vehicle, became the favourite of contractors. The JIMs were still used by the company during the 1980s, including in a joint SAM and WASP recovery of a Wellington Bomber from Loch Ness in 1986, and were often used as back-up standby units for the rapidly advancing WASP suit.
An experimental thruster pack intended to attach to existing JIM models was developed, but the suit gradually declined in use with Oceaneering as their new WASP suit, a mid-water vehicle, became more popular. The JIMs were still utilized by the company during the 1980s, including in a joint SAM and WASP recovery of a Wellington Bomber from Loch Ness in 1986, and were often used as backup units for the rapidly advancing WASP suit.