I handfeed all mine , I like the excuse for some quality lizard contact time, they enjoy it, it's quick and I know exactly how many bugs are eaten by each lizard each feed, and they seem to enjoy it too (very very spoilt scaley children !!!! ) .
When Peppa and Toothless were really young, under 4 months old and they were on three live insect feeds per day, I tried using a separate feeder tub but they were more interested in me and the surroundings than the bugs so I gave up on this and resorted to simply feeding them in their rearing tubs (100L tubs) , I'd simply dump their insects in and let them chance them , great stimulation and exercise for them. It was my practice to hand feed the first 2 or 3 crickets to each day to each of them (Peppa and Toothless) for bonding purposes.
I'd simply then add the grated veg and leafy greens with the second feed, and leave this til next day , any crickets not eaten during the would be drawn to the greens and veg , and the little hatchlings soon twigged and would be up "midnight raiding" very regularly because they knew were the rogue crickets would be found.
I routinely cleaned the rearing tubs next am before feeding Peppa and Toothless and would recapture any remaining crickets missed by them (usually only a few occasionally).
As they got older, I resorted to handfeeding because I wanted to form a tight trusting bond with Peppa and Toothless.