EriktheFish

I'm ready to buy one of the Downtube bikes and do the Cruzbike conversion to make it a recumbent like SesameCrunch did. I'm having trouble deciding between the FS or NS. I'm mainly going to use this bike for air travel and then biking. NS seems lighter and smaller, but FS is attractive to have on a short wheelbase bike. Apprehension toward FS from extra weight/size and fear of "pogo-ing" especially when climbing steep grades. Is this much of an issue? Can a higher quality spring/shock be added to rear? Is the FS a dog performance-wise compared to NS? (I'll get 2 more of same for wife and son for trips)
Reports from folks that have ridden both appreciated.
Thanks