I have always given my HL's crickets - especially in winter when ants are not readily available - and have had no impaction/regurgitation/undigested cricket problems. I usually pull the rear legs off though and hand just put in 1 or 2 at a time and not overwhelm them. Also making sure to wash out the cricket keeper regularly and not reusing the egg crate material to reduce your chances of giving the lizards contaminted crickets is probably a good idea.