Overall the pumping is not considered the best way for length gain. Moreover. People here tend to combine pumping with other methods. So do I. And so I think you shall do. Pumping 101 and other descriptions of how to approach PE are here: Penis Enlargement Manual
And last but not least. Approach your dick with great care because it’s your last one. Take Newbies routine first and add pumping later when experience builds. PE is not a sprint. It’s a marathon. It’s too easy to get addicted with first results and want some more fast. Keep to your routine, not to your desires.
Started: oct 2007 with 11.8 cubic inches
Currently: apr 2008 12.8 cubic inches
Objective: >20 cubic inches