Just got in from testing it (and a trip to a local brewery{Founders Imperial Stout is serious stuff, just trust me!}). It does change things up a bit, and does throw a tighter loop. Although it will take some more practice to get it down. I was fishing an old Sage 8124, Guideline 9/10 S2S3 with 2ft cut off on Climax Zip. I found that 2-3ft overhang was optimum, any more was too much, any less made no noticbale difference. I think I need a different running line, as the mono is a bit hard to keep a handle on.
Even though I had problems with the management of the running line, those Guideline heads are just SICK! Even with a big "wet sock" style streamers on the end, the thing goes like nothing else! The 2/3 was a bit too much for the conditions, maybe an I/2 would suit the local better.
I tried the same rod with a Rio Mid Spey 8/9 with the middle taken out, and even though the two are within 20 grains and a few feet in size, there was no comparing the two as far as turn-over went.
Email Jack, get some Guideline heads, for the short bodied crew there is nothing better that I have seen.