Ditto with Meat! Let me ask you this deadman, what's your goal? Do you want to get bigger, or stronger, or both. If it's a program that involves singles, I'm assuming it's for strength. If you want the best of both world's, why don't you change it up and try this. Take a little advice from everyone here. Do higher reps on Monday...say 15. Lower reps on Wednesday...6-8, and pure strength on Friday...1-3. Instead of doing 10-15 sets of chest 1 day a week, why not do 5 sets on Monday, 5 sets on Wednesday, and 5 sets on Friday. Don't push to failure, always leave 1 maybe 2 reps in the tank. If you ever read the comparisons of the two, it's a much better way to train. This way you get the best of all the rep ranges.
And I'm not sure what program you are talking about following, but there are more than enough on this website to keep you busy for a long, long, long time.
Good luck man! Let us know what you end up doing! And BTW....singles are most definitely a safe way to train! PERIOD!!