Reviving an old thread.
When we bought our 2023 Greyhawk, we paid extra to have the jackknife sofa replaced with theater seating. We did not specify what brand or have a chance to test sit what would be installed. It was whatever Jayco was supplying, and it matched the interior.
With the Jayco theater seating, I noticed the same problem as the OP. It was hard to stay reclined. Our last TT had Thomas Payne theater seating that DIDN'T have this issue. I placed a 1" block under the front of Jayco chairs and it helped.
This March we took an 18 day trip and by the end we decided that the Jayco seats weren't that comfortable. If we could just have seats like our old Thomas Payne seating, we'd be happy.
During our search more comfortable seating, we stopped at two different Camping World's, and several local RV dealers. Only Camping World had anything in stock. To aid the search process, I removed the existing theater seating. I looked at several variations including multiple lawn chairs, and small recliners at the several furniture stores. Unfortunately, I was not successful with a low cost alternative.
At the second Camping World, we were fortunate to find some Thomas Payne theater seating that matched our interior and we bought it. It was also noticeably more comfortable than what we had or anything we tried.
Some of the things we learned;
1) There's a big variation in comfort. You need to test sit before you buy.
2) It seems manufacturers have different levels of quality/comfort, and you get what you pay for. At one Camping World, they had two different Euro style swivel recliners on display. One was $30 more expensive. Sitting in them back to back, it was easy to feel the difference.
3)Camping Worlds inventory is limited to what was on display. If we liked at particular piece of floor model furniture, we weren't able to order a new one. It looks like they buy up "leftover" production.
4)Residential furniture like Lazy Boy or Flexsteel is very comfortable, but even the smallest pieces seemed to be an inch or two bigger here or there. So measure carefully how much clearance is needed from the wall to recline and how far to they stretch out when fully extended.
5)Keep in mind what size door you have and how far does the furniture disassemble to get inside your unit.
6) My wife is not afraid to spend money if it makes life more comfortable