bset replacement tips for the weller PES 51 that are optimum pedal building?

[mikef]

Hullo, oh ye brethren of the small boxes that contain galaxies of sound inside!
I have a Weller PES 51 soldering station and being a man of small means,(Actually a lot of the dough goes to Brian because of all them sweet pcbs n projects that issue fourth from the laddies lair,truth be told!) I was contented to use the one tip that was upon  the device,but seems to me 'tis time to replace it.
I know the finer pointed ones are in order for the delicate work? should I stick at getting genuine Weller tips. or some of these off brands ok? https://www.ebay.com/itm/5X-ShineNow-Quality-Replacement-tips-for-WELLER-WESD51-WES51-WE1010NA-PES50-ETS/153312153720?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160908105057%26meid%3Dde90ebd71fcb45a396e0076305c2ca79%26pid%3D100675%26rk%3D5%26rkt%3D15%26sd%3D263935897723%26itm%3D153312153720&_trksid=p2481888.c100675.m4236&_trkparms=pageci%3A5e29e563-4b58-11e9-ba3f-74dbd180ffbe%7Cparentrq%3A9d09b16c1690abc229ac6396ffff5337%7Ciid%3A1



Any body that could chime in I would greatly appreciate it!