I dont find the twrch climb that bad. Its a bit techy and certainly a challenge to clear without dabbing, especially strait out of the car park but it is over pretty quick, and on the whole is a steady climb whereas the cafall climbs are more up and down so you gain height a lot slower. Both are fun trails though and if youre doubling up id recommend doing the twrch first.
You can also opt to do the pedalhounds DH instead of the final descent on cafall. Its obviously a lot steeper and shorter but a good alternative now and again