The descriptions in the OP threw me for a moment, but clicking on the link cleared it up...I'd forgotten that David had changed the name on his website
His first option is the Bully Adapter...it's named after David's bulldog...and I have the 3rd one manufactured. I did a
review of it on this forum, but the pictures will no longer show since photobucket put a stop to it. The descriptions are still accurate if you'd like a more detailed explanation.
The Bully Adapter works pretty well once you've tweaked it a bit. It's greatest strength and weakness is that it is designed to work with both small (9mm) and large (.45ACP) caliber bullets. The openings for larger bullets will sometimes interfere with the feeding of smaller bullets. The Lee multi-tube setup wells pretty well also. You just need to figure out how to stabilize the tubes. You can get extra tubes inexpensively if you like to have them pre-loaded...I have enough tubes to have 500 bullets ready before I start loading.
His second option isn't related to the Lee bullet feeding system at all...it is more closely related to the Mini Mr Bullet Feeder magazine. The Mini Mr Bullet Feeder is said to currently be having teething issues
It isn't a feeder, but only a magazine for bullets. You still need to have a separate Bullet Feeding Die (Hornady, RCBS, Mr Bullet Feeder).
The best bullet feeding system on the market is the original Mr Bullet Feeder...but it is a bit spendy
The best bullet feeding die on the market is the Mr Bullet Feeder die. After that, I prefer the Hornady over the RCBS. While both take some finesse to adjust correctly, I prefer metal collets to nylon ones