Hello and thanks for the help in advance...I did try searching but came up mostly with answers for phones.I recently scored a great buy on a Trimble Recon that I'd like to install a ballistic program for field use.Right now on my home PC I'm using the Nightforce program which works good and I could also get the same for the PDA.I've also been reading about Exbal, and also Horus has a nice program albeit expensive.My experience is limited on these but I do plan on learning and using one more.Can someone who has experience guide me a bit on choices? Thanks fellas.........