I have been researching this.. have found that there are some alternatives to gut strings because of their cost and maintenance. I'm trying to decide between these two: http://www.gotofmi.com/upbaclkerowe.html and http://www.gollihurmusic.com/product/1250-STRING_SETS_EUROSONIC_UPRIGHT_BASS_STRINGS.html Can't help but notice the price difference. Are there any things I should look out for? Do the Weedwacker strings perform as well? From those who have played both, what are the differences? Any other advice on buying a first set of strings for upright slap bass would be appreciated! Thanks.