If you’re dropping bf% but the scale isn’t moving then you’re improving within relation to overall muscular mass/body composition. Who cares if the scale doesn’t budge, so long as you’re gaining lean mass (which isn’t a priority in powerlifting anyway)… then be happy
What’s the water cut for? Don’t fuck with dieurerics, the consequences far outweigh the benefits. Aside from dehydration induced electrolyte imbalance inducing the potential for lethal arrhythmia you’re looking at serious long term renal impairment when combined with tren/sdrol (a combo which alone, doses high enough will probably require you to have a kidney transplant later on in life)
Size wise, how do you look compared to natty status? Are you far larger, or merely far leaner/grainer.
Regardless I wouldn’t beat yourself up over the prospect of not gaining significantly, the training ideologies/styles of bodybuilders vs power lifters differ quite a bit
As the saying goes… if you want to be a bodybuilder, train like a bodybuilder and vice versa. There’s a reason specific training styles are attributed towards differing goals. Imagine training like a distance runner in preparation for you’re meet… doesn’t make sense does it, and you would have an entirely different look (though tren and distance running noooooooooo… some runners use nandrolone, understandably in low dosages presumably for acute benefits in relation to joint/tendon health) as distance running is a great way to fuck up you’re knees.
How much do you weigh now, and what’s you’re target weight? On sdrol you can probably attribute 2-3 kg to glycogen (dependent on dose… if you’re on something stupid like 60mg/day… which… don’t… if it impedes you’re ability to train it isn’t worth it.) then perhaps even 6-7 kg could be glycogen
As to water cutting, perhaps you’d want to ask @flipcollar what he does prior to meets, he always makes his weight, then carbs up just before and puts on like 10-15 lbs back on in an hour lol. Watch out for high blood pressure whilst cutting water, acutely, even briefly a hypertensive crisis can kill you.
You say the meet is in February, so you’ve got THREE months to dial things in, I wouldn’t fret about it unless you’re like… 120kg or something stupidly heavy like that, in which case I’d say look for another weight class lol
Have you tried an oral more associated with strength gain? Whilst toxic, halotestin appears to be king. Fluoxymesterone is more androgenic than tren, and it’ll potentially screw with you’re mood even more so than tren. For short durations though (say a few days) it might be interesting to try (not recommending it though, just saying some people acutely put on mad amounts of acute strength after only a few doses) the CNS stimulation the drug provides is fairly substantial