you are wrong:) why people which does'nt understand always speak it is nothing? are someone is paying you for this ymgve2 ?
it is reducting depends how many bits you want down. in example I put just one bit.
here example by 2 bits down:
privatekey 33319796085101326529249581929477186684697547300958354186916342486228713715539
original nonce 12345678
original transaction:
r: 91699739317935258627372771550459504326006289891191381848862551863464593478869
s: 22470372326531182916048759846739219230161803771746602100872838172795117428239
z: 77933714094255861201447687678278381229091537417560707361169638023191559091456
TEST reduced nonce by 2 bits
new transaction no 1
r1= 58791035928874263734477015578729637159200831977270863959077662867673788943899
s1= 1146276498444880461607285754901056186257606207373357202149513360663255916179
z1= 55252209129690488466353501304788777995767751870664882885294798081067532098924
new_nonce= 57896044618658097711785492504343953926418782139537452191302581570759083833588
----
new transaction no 2
r2= 13216735599055321693275164718484693411744078600099243927642235673176253257651
s2= 110884931566599762544100127468657454025633963654935124629917767982428268957077
z2= 115731619452896531747679495510563255291756647736306567469479453173002604514081
new_nonce= 86844066927987146567678238756515930889628173209306178286953872356138624207172
----
new transaction no 3
r3= 24894206273268878263349294657488498691923203916346408373192844113639971551195
s3= 17692957392224638638904400338849660847480350245616687299835189843731307169529
z3= 36887482288168487840589825371343076767667876551549493940478183825568024789781
new_nonce= 3086419
----
new transaction no 4
r4= 72327614016855621938082773188465229117664784355797024514364570655233828618319
s4= 1295449013060308827742791361461358795513637940282359308127203313396850131615
z4= 84159001771438205278811623221110180242022803004615975764361973143107087735524
new_nonce= 28948022309329048855892746252171976963209391069768726095651290785379543460003
new transaction no 3
r3= 24894206273268878263349294657488498691923203916346408373192844113639971551195
s3= 17692957392224638638904400338849660847480350245616687299835189843731307169529
z3= 36887482288168487840589825371343076767667876551549493940478183825568024789781
new_nonce= 3086419
as you see it is reducted