if you don't like squishing the crickets then you should try repti-aid, i got some when i adopted my female leo and she was bone thin and not eating anything but within a few feeding she started to improve and after about a month she started to gain some tail fat. i've found that i don't even have to force feed her, if you put a little bit of the mix on their nose they will begin lick it off, once they start just continously replace the amount they lick off. it takes about 3x as long but it's a lot less stressful. i can't praise this stuff enough, without it my gecko wouldn't be alive.
http://www.petco.com/Shop/petco_Pro...av_258_N_27+95_sku_870110_familyID_10804.aspx
http://www.petco.com/Shop/petco_Pro...av_258_N_27+95_sku_870110_familyID_10804.aspx