Best price and with seemingly good reports would be a CLX27,i have a CLX22 and ought to have gone 27 but will be ringing Gardiners monday morning to see can i get another section. The big selling point for me was the closed length making it much less awkward to clean at ground level. I am a wfp newbie but i looked hard before choosing the CLX,If i had more customers i would have gone for the SLX,In fact no i wouldn`t,not until they rectify the black hands problem.And if you do choosE CLX ask for a glue kit as there have been a few problems with clamps coming unstuck,easy remedied though and my opinion is that end users allow a bit of leaway with Gardiners as its a nice bit of new kit plus it does appear the customer service is more than happy to assist and remedy any problems.