Dear krytie,
1. as long as I’m progressively and proportionally increasing the weight and reps will this be OK?
>>>> Yes, progressive loading as opposed to progressive overloading is fine. The rep scheme is but a suggestion since it is more important to adhere to the principles of HST. Interestingly, the 15s phase isn't supposed to be too demanding since it is a phase designed to restore injury. For this reason, you might wish to do pull-downs in place of chins and only embark on the chins from the 10s and thereafter.
Still, any chance of your doing assisted dips and chins? Some recommend cheating on concentric while controlling the eccentric as a means of meeting your rep count. You could stand on a box or something, to use your legs to aid in the concentric phase...
Then again, a strength-endurance type of protocol to build your ability in the dips and chins might be prudent now. If we wished not to employ pull-downs in the 15s and dive into the chins straight away, we could do this - using the box as described above, aim to do 15 good negative reps for the 15s phase? Let's not bother with progressive loading with the 15s. Just do the negative reps, resting between reps to avoid failure, until you hit 15 reps. For the last workout of 15s, rep it out to 15 or failure, whichever comes first, and if failure comes first, rest for a bit then do more reps until you hit 15.
Come the 10s, we'd add some weight to this with a weight-belt or something, and you proceed to the 10s as you had done for the 10s. We do the same for the 5s. This can be very gruelling though, so it might be in your best interest to limit your chest and back exercises to two at most. Dips plus dumbbell presses, chins plus one-armed row or something like that. If not, dips and chins are a good start anyhow.
Alternatively, since you can do 8 good reps, do three sets of five to get 15 reps for the 15s phase. On the final workout for the 15s, rep it out to failure, then cheat away (on the concentric but be strict on the eccentric) as necessary to do a straight set of 15s. For the 10s, do two sets of five to get 10 reps for the 10s phase, but add weight to this. For the final 10s workout, do a drop set upon hitting failure, and/or cheat away to be able to a straight set of 10 reps. Same for the 5s.
You might even wish to use small increments e.g. 1lb or 2lbs for each workout just to see if this can be tolerated.
Godspeed, and happy HSTing
