TAIBACH were knocked out of the Swalec Plate in the fourth round on try count.
They drew 24-24 at home to Pill Harriers, who progressed to the quarter-finals after having outscored Taibach by four tries to two.
The visitors took an early lead but Taibach pulled back to 6-7 after two penalties by fly-half Mike McSweeney.
A second Pill try and an Aaron Jones penalty for Taibach made it 12-9 at half-time.
A third try for Pill and another McSweeney penalty made it 19-12 before centre Jones weaved around defenders for a try. His conversion off the upright levelled the scores at 19-19.
Pill crossed again, but Aaron Jones crossed in the corner for his second try, which again levelled the scores at 24-24, but there was no further scoring and Pill edged into the quarter-finals.
Loughor also went out by the skin of their teeth, going down 15-12 after extra time at Pontypridd side Rhydyfelin. It had been 12-12 at full time.
Loughor led 9-3 at half-time but let their control slip as the home side clawed their way back into it. Full-back Tom Davies landed four penalties for Loughor, trumped in the end by opposing full-back Josh Jones's five.
Cwmllynfell accounted for visiting Builth Wells 37-15. They scored four tries through hooker Mark Robbins, flanker Matthew Steinman and wings Tristan Lewis and Gareth Drewson.
Fly-half Craig Jones put over five penalties and one conversion.
Felinfoel also had a comfortable fourth-round victory, 28-18 at home to Pwllheli.
They scored three tries through centre Jordan Dunne, lock Curtis Morris and No. 8 Owen Poolman, and fly-half Aled Roberts kicked three penalties and two conversions.
In the third round of the Plate, Kidwelly won 20-9 at Crymych.
Fly-half Tom Gravell and flanker Richard Rees got the only tries of the match, wing Gareth Rees adding both conversions and two penalties.
In the fourth round of the Swalec Bowl, Glyncorrwg won their Afan Valley derby with Pontrhydyfen 31-0.
Glyncorrwg were too strong up front and scored three tries through lock Nigel Cook, No. 8 Anthony Davies and a penalty try awarded for a scrum offence.
Fly-half Gareth Goodridge kicked two conversions and four penalties.
In the fifth round of the Bowl, Penlan won an entertaining game against Cardiff Medicals 21-7 in a game played at Llandaff RFC because the students' university pitch was too wet.
Penlan led 18-7 at the break after tries by wing Jason Garmey, flanker Rob Green and man of the match No. 8 Robert Di'lulio. Fly-half Scott Davies and centre Steven Williams landed a penalty each.
Penlan, who have been drawn away in every round so far, will be hoping to play at Mynydd Newydd in the quarter-final.
Also in the fifth round, Penybanc were pipped 9-5 at home by Pontycymer, a long-range drop-goal ten minutes from time sealing the Garw Valley side's win.
Penybanc centre Geraint Evans, in the opening ten minutes, got the only try of the game.