Hey you gut-heads! I`ve been active on the Gamut thread lately but promised not to post anything in there for some time

I wasn`t very lucky with my fairly used Gamuts but the Lenzner D & G arrived on friday ( had to go back to Anima EAD Garbo gut G on thursday, since I played a short gig on friday ). Now I have experimented with the setup all weekend.
Those Lenzners are fine strings straight out of the box, pretty much like my Garbo gut G, but a tad on the darker side and a bit looser feeling. They need some serious playing and settling, especially the D, but the starting point seems, feels and sounds a lot healthier than with my dead Gamuts.
The biggest question has been what to pair them with and the overall tension of the set. The choices has been Gamut EA, Anima EA and finally, dead Spiro 42 weichs. Gamuts did a better job with these Lenzners but still maintained some of their problems ( weird overtones, buzz on the A string ). The tension of the all-gut set was wonderful, even when I crancked them as high as my bridge allowed. This set bowed well.
Anima bottom / Lenzner top worked out fine, but there`s some harshness between coppery-growly-sustainy Animas and the dark and thumpy Lenzners. Nice tension though, even at 9mm - 12mm height.
The Lezners seem to speak out their best when crancked up high and that becomes a problem when using anything else than gut on the bottom. But when I go under 9mm`s on the G it doesn`t seem to matter much anymore, they do just as fine at 7mm - 10mm on my 105cm scale bass. My new carved bass has been set up with fatter low tension strings, like gut, Velvets and downtuned steel, in mind. Theres room on the fingerboard for those to vibrate.
The reason why I got into this old-school mood in the first place was the sound of Charlie Haden. I kinda thought that I`m pretty much done with steel core strings but couldn`t refuse trying my dead Spiro weichs on the bottom. Too much tension at 9mm - 12mm and I started going lower from there. The best balance between the bottom and the top seems now to be at 7mm - 10mm. The Spiros doesn`t kill my hands or the gut D & G sound there. Very nice and balanced sound with this set as the dead steel is a lot darker than my relatively fresh Animas. Very, very good, if I just learn to live with the uneven tension.
There`s some really cool zero b******t -factor about this Spiro / plain gut thing too. No need to change strings for some serious time, gets better with age, stays in tune, relatively cheap.
Arco is even more difficult than it naturally is. But, one of the main reasons to go gut DG over gut G only was the arco response -suits my needs better when it`s 2 / 2 than 3 / 1. I dig the bowed gut sound.
I noticed that the most singing tone from this set comes when plucked higher on the fingerboard, like Haden did. Tried this amplified too and there was the best amplified sound I ever got, very Haden-ish, love it.
My question is for those who use Spiro / gut mix and bow too. How have you managed with the tension difference? How high do you set your strings, and how did you find the best balance between the two? Any tips for pizz and arco techniques, especially when going between the steel and gut?
This just might be someting to stick with!
Thanks, Reiska