Not sure that this is a success story, perhaps more a 'we are still here and managing ok' story

Havent been in for a while so thought i'd check in. To recap, my boy Toby (9yo greyhound) started on pheno in feb this year. At first we had good results and managed to get 7-8 weeks between seizures. Then the time between dropped back down to 4 weeks. We started to put the pheno up but this hasnt really helped. He is now seizing every 4-5 weeks on 120mg twice daily. His pheno levels seem good - 87 last check (i think its supposed to sit between 60-170??).
But after this last seizure, i was a bit worried as he really hit his head hard on a table as he went down. He seemed ok the following day, but i am afraid he looks a bit weaker and more clumsy. And perhaps acting a bit scatty sometimes. His hind legs lost form and have gotten a bit weak since we started on the pheno anyway. But i can deal with it as long as they dont get worse. I just worry that sometimes he seems a bit clumsier. I hope its just the back legs and not the brain cells going!
We are seeing the neurologist next week so i was wondering if we should talk about adding some kbr (?) into the mix? I just feel like if we keep upping the pheno and still only getting 4 weeks its not really helping - yet he still has the side effects to deal with. Or should we just be happy with 4 weeks? But that's where we were at before meds...
I suppose the seizures themselves are shorter with the pheno - the violent thrashing only lasts a minute. Then he sits very still and stares ahead unresponsive for around 4-5 minutes, drooling and with his facial and ear muscles slightly twitching. Does anyone else witness this period after the thrashing and paddling? I assume its recovery or post ictal and not part of the actual seizure.... after this, he jumps up and starts the toy-biting, wandering and sniffing for about 20-30 mins.
Anyway, if anyone has any advice on when to look at using kbr, id much appreciate it. I suppose we should be happy with a monthly cycle - but the more he seizes, the more i worry about possible brain damage and him hurting himself.
Oh, the other thing i wondered - is there big risks putting epi dogs under anaesthetic? Toby is 9 and a half years old and has some TERRIBLE teeth up the back. His age worries me but id rather do it now than wait til he's even older. He at least needs a clean, if not extractions. But i am really worried about how he will go under anaesthetic and whether it has the potential to trigger a seizure. I suppose if it does he is in the best possible place ie. vets can manage it. And if i leave the teeth he could get really ill down the track...
He also has pannus, so for us its all about minimising his ailments theses days!

Anyway, thanks for listening/reading!
Hope you and your furry friends are all doing ok

Maysie x