Track night , Times are disappointing again!

[Oldschoolpony]

Ok, two weeks ago i ran 12.759 @ around 111.1 mph, using mcreary street drag tires(treaded) that were 275/60 15 size, roughtly a 28 10.5 15. This time around, we went with a hoosier pro drag dot slick 27 11.5 15 size, brand new tires at 15 psi. First launch i tried at around 5500 rpm. NO GO, spun the heck out of them, snatched 2nd gear and car went sideways, as it did in 1st. Lousy run. 2.4 60 ft times 13.03 @ 111 mph.

2 nd run, launched at 2500 rpm, they grabbed , but rpm to low and missed 2 nd gear. 13.03 @ 110.7

3 rd run did a reaslly nice launch @ 3500-3800 rpm, droped my 60 ft time to 1.738 again, no 2 gear!!!!! just wont catch.
Ran a 12.832 @ 106.8<<---- start to midlle of 4th gear, car started drifting hard to center and got out of its groove so i backed off.

My last run, 4th one. i tried a 4300 - 4500 rpm launch, just a little to much it spun hard at first, but caught at the top of 1st gear. AGIAN NO 2ND gear. JUST WOULDNT GO IN!!!!! grinding.
even with the spin i mangaed a 1.820 60 ft time. and my best so far, 12.755. heres the catch, i ran at just over 115 mph. 4 mph faster than the car next to me and 4 mph better than my best time, but he still won.( another 100 ft i would of run him down)

Why will this stupid world class t-5 grab 2nd gear only if 1st gear burns. It's consistent. if 1st grabs and I launch, 2nd will not go. any ideas on what might be wrong? 3 and 4 shift great. and only when I spin can I get 2nd to catch, everytime i hook up in 1st, on the street or track, 2 nd grinds.. HELP!!!!!!