I have a Walrus Warp 2that is 15 yrs old & Hilleburg nammatj 2gt is 10yrs old. Both would work for you, however the Walurs is harder to pack down small due to the rapid hub pole system.
I picked up a S.O. Back Country shelter that I used twice one year & sold & have a SL5. I won't bring the SL5 as my only shelter. To many issues I don't like with floorless single walls for me. I wouldn't be afraid to try a good 3 season but I don't really know whats out there since I haven't looked for a long time.