Does bewiring decrease "wholeness" ?

I have felt at times "Biamping" seemed to distract from the sound but not biwiring.

Thanks for your comments.
Your suggestion IMO, that the salesman as an interest in his suggestion is not correct, since he was complimenting the single wired option (with jumpers) over the biwered option.
I am also aware that, bi-amping was once evaluated by a revewer with the specific set-up he was working on, as increasing some aspect of the sound being reproduced but with a slight decrease in the "realness" or "directness" or "wholsomeness" of the musical event.
The salesman was basically suggesting that for him to be-wired was conductive to give the type of result that I have tried (excuse my french) to describe above.
I had never read or heard about it before, but this audiophile-salesman was definitelly using a single run and jumpers on his speaker set-up at home.

In all the set ups I've used--and I mean ALL--Bi wireing was always a big improvement. (When they give you 4 posts per speaker)--- Jumpers were always less.

For what it's worth, I always biwired. Figured if two sets of speaker terminals were provided, it was best to use them. When I switched from Kimber 8TC (biwired) to Mapleshade Golden Helix and assumed I would biwire, Pierre Sprey of Mapleshade convinced me NOT to buy the second set of cables (despite the fact that it cost him money to make this recommendation) but to use his copper foil jumpers instead. The single Mapleshades left the biwired 8TCs in the dust. But obviously, YMMV.

I think this may depend on many, many factors.
1)Speaker cable quality
2)Jumper quality
3)Whether you're using an "internal biwire" (some wires inside of the same cable connected to highs, some wires connected to lows) or true biwire (separate runs of the same cable for highs and lows)
4)Routing of runs of cable in a true biwire setup (the fact that I've read that the physical separation of the high frequency carrying cables from the low frequency carrying cables is important, leads me to believe that an internal biwire is not the same as a true biwire (maybe even same as using jumpers)

I have no idea.
I could appreciate a sizeable difference in a pair of B&W Nautilus 805s when used with high quality speaker cable, between a single run and a biwire run.

My new speakers use a dual voice coil setup on the woofer, so it isn't discrete like the 805 (meaning the top terminal pair is connected solely to the tweeter, the bottom terminal pair is connected solely to the woofer).

Honestly, I haven't A-B'd single vs biwire on the new speakers.

I think 1 great pair of cables will sound better than 2 crappy ones, but, obviously, it's never this clear cut.

For any amount of $$, there are many, many different choices. I'd suggest that you pick a dollar amount, and look at your options both ways.

I find that biwiring (via the 805s at least) just sounds less "smeary" and more articulate.
good luck