I dont follow this ?, so for a 30ft with 5 steps each step is 6ft ,so r u saying that the only powers available to me r ,6ft,12ft,18ft,24ft & 30ft, so if i pull back only half way on the yellow marker gauge to what should be 15FT , buy your rules iv only completed 2 steps(12ft) as the 3rd step comes at 18ft, so half way is not 15ft its 12ft, even trying to write this dont make sense,
thx pb